CYChengyu Dictionary

Chengyu meaning

良药苦口 (liáng yào kǔ kǒu)

good advice can be hard to hear

Plain Answer

Source: Traditional medicine-and-advice maxim in Chinese usage. Treated here as classical story; read it first as a sentence-level judgment.

Core meaning: 良药苦口 means good advice can be hard to hear: Used when something unpleasant to hear or accept is useful for correction. It often explains frank advice, strict feedback, or difficult truth that helps the listener improve.

Practice this meaningRead the story
Label
neutral / common formal
Best objects
teacher feedback, friendship advice, tone boundary
Do not use when
Do not use 良药苦口 for a scene that only shares one surface word with the meaning. If the problem is closer to 一针见血 or the contrast points toward 顶礼膜拜, choose that nearby entry instead of stretching this one.

Use: Use 良药苦口 when the teacher feedback sentence shows the object, cause, and tone clearly. Avoid: Avoid 良药苦口 when the sentence only sounds related, lacks evidence, or needs a plainer word.

teacher feedback这次批评听起来刺耳，但良药苦口，他知道老师是为他好。Zhè cì pīpíng tīng qǐlái cì'ěr, dàn liángyàokǔkǒu, tā zhīdào lǎoshī shì wèi tā hǎo.The criticism sounded harsh, but good medicine is bitter; he knew the teacher wanted to help him.

Next: Read the examples, then compare 一针见血 before practicing 良药苦口 in the focused quiz.

Often studied with: 一针见血, 改邪归正, 亡羊补牢

Read This First

良药苦口 is introduced here through a classical story tradition retold for modern learners; the source label is Traditional medicine-and-advice maxim in Chinese usage, and the page separates that background from modern sentence choice.

良药苦口 means good advice can be hard to hear. The important first reading is Used when something unpleasant to hear or accept is useful for correction. It often explains frank advice, strict feedback, or difficult truth that helps the listener improve. This is a neutral phrase in normal use, so the sentence must show the judgment clearly.

Use 良药苦口 when the object, cause, and tone match examples such as teacher feedback, friendship advice, tone boundary; then compare 一针见血 and 改邪归正 before writing your own sentence.

Avoid 良药苦口 when the sentence only shares a broad topic, when the tone would be unfair to the person being described, or when a plainer word would be clearer than a chengyu.

Start with this cue: teacher feedback plus a visible reason.

Meaning and Translation Notes

Used when something unpleasant to hear or accept is useful for correction. It often explains frank advice, strict feedback, or difficult truth that helps the listener improve.

Literal meaning

good medicine tastes bitter

  • 良 / good
  • 药 / medicine
  • 苦 / bitter
  • 口 / mouth

English equivalents

  • bitter medicine near

    Works when English readers understand the medicine image.

  • good advice can be hard to hear plain

    The safest learner translation.

  • a hard truth that helps plain

    Natural in feedback and coaching contexts.

How To Use It

Use 良药苦口 when the reader can see why good advice can be hard to hear is the exact judgment, not just the topic. A strong sentence names the actor, the thing being judged, and the evidence that makes this idiom more precise than an ordinary adjective.

  • Use it for frank criticism, strict advice, or difficult truth that aims at improvement.
  • The phrase often appears with 逆耳, 忠言, advice, and correction contexts.
  • It can sound moralizing if the speaker uses it to justify being rude, so the helpful purpose should be visible.

Common Mistakes

Do not use 良药苦口 for a scene that only shares one surface word with the meaning. If the problem is closer to 一针见血 or the contrast points toward 顶礼膜拜, choose that nearby entry instead of stretching this one.

  • Do not use it for any unpleasant sentence; the unpleasantness must have corrective value.
  • Do not use it to silence the listener's discomfort when the advice is careless or humiliating.

Wrong Use Clinic

The most useful check is often the phrase you should reject.

  1. The learner wants to sound more idiomatic but has only a broad topic match for 良药苦口.

    The sentence drops in 良药苦口 without showing the cause, object, or tone that would make the idiom necessary.

    Fix: Rewrite the sentence so the evidence for good advice can be hard to hear appears before or after the phrase.

    良药苦口 fails in this case because a chengyu is not decoration; it must name the exact judgment the sentence is making.

    Compare yi zhen jian xue

  2. The learner wants to say the opposite or a neighboring idea and chooses 良药苦口 because it feels familiar.

    The sentence uses 良药苦口, but the described situation points to a different cause, time point, or social attitude.

    Fix: Compare the sentence with 顶礼膜拜 and choose the phrase whose boundary explains the situation with less force.

    良药苦口 becomes misleading when the nearby phrase would identify the real problem more cleanly.

    Compare ding li mo bai

  3. The learner has the right meaning area for 良药苦口 but ignores register and emotional force.

    The sentence uses 良药苦口 directly about a person, yet gives no softening context or evidence for such a corrective and sincere judgment.

    Fix: Add the observed behavior first, or choose 改邪归正 if the sentence needs a gentler learning path.

    良药苦口 can sound heavier than a short English gloss. The reader needs enough context to see why the tone is fair.

    Compare gai xie gui zheng

  4. The learner remembers the origin image of 良药苦口 but applies it to the wrong object.

    The sentence names an image or story detail, but the real object being judged would be better explained by another chengyu.

    Fix: Name the object first. If the object points toward 马马虎虎, use that contrast instead.

    良药苦口 should follow the judgment, not the most memorable image. Story memory is useful only when it supports the sentence-level decision.

    Compare ma ma hu hu

Chengyu Often Studied Together

Use these clusters to build sentence-level judgment instead of memorizing a single gloss.

  1. 良药苦口 with nearby learner choices

    良药苦口 is often studied beside 一针见血 and 改邪归正 because the words share a theme while asking the learner to judge a different cause, tone, or timing.

    老师先让学生解释良药苦口，再比较一针见血和改邪归正，这样不会只凭英文近义词选答案。

    yi zhen jian xuegai xie gui zheng

  2. 良药苦口 with contrast checks

    良药苦口 becomes easier to use when it is contrasted with 亡羊补牢 and 顶礼膜拜; the contrast forces the writer to decide whether the sentence is praise, warning, correction, or neutral description.

    写作练习里先用良药苦口造句，再换成亡羊补牢，观察判断方向怎样改变。

    wang yang bu laoding li mo baiyi zhen jian xue

  3. 良药苦口 in example-building drills

    良药苦口 should be practiced with 一针见血 and 亡羊补牢 because examples reveal whether the learner is choosing by meaning, tone, or only by a remembered image.

    课堂上先用良药苦口写一个有证据的句子，再换成一针见血或亡羊补牢说明判断为什么改变。

    yi zhen jian xuewang yang bu laogai xie gui zheng

  4. 良药苦口 in story and source review

    良药苦口 links best with 改邪归正 and 顶礼膜拜 when the learner is checking whether a source image truly supports a modern sentence.

    复习出处时，不要只背良药苦口的故事，还要比较改邪归正，看哪个成语更能解释现代句子。

    gai xie gui zhengding li mo baiyi zhen jian xue

Learner Guide

Use these notes when deciding whether this chengyu fits a real sentence.

Use 良药苦口 when unpleasant words help someone correct a real problem. It fits teacher feedback, friendship advice, family reminders, coaching, editing, and management conversations. The speaker should look sincere or useful, not merely angry.

Good advice can be hard to hear is the safest English explanation. Bitter medicine keeps the image but may sound old-fashioned if the context is modern. A hard truth that helps works when the sentence focuses on correction rather than medicine.

Do not use the idiom for random harshness. If a person insults someone and then claims it is for their good, the phrase becomes suspect. The learner should ask what the advice treats. If no problem is treated, the medicine image is missing.

A strong sentence should include the listener's discomfort and the later benefit. The phrase often feels complete when the person first resists, then understands why the advice mattered. This before-and-after shape makes the correction more believable.

Before using 良药苦口, write the plain English idea first. If the plain sentence already says everything naturally, the chengyu must add a sharper judgment, cultural image, or tone. If it does not add one of those, leave the plain wording alone.

A good 良药苦口 sentence contains an object and evidence. The object is the person, plan, habit, result, or scene being judged. The evidence is the reason the phrase fits. Without both parts, the idiom may look learned but feel empty.

Compare 良药苦口 with 一针见血 and 顶礼膜拜 before finalizing a sentence. The goal is not to memorize synonyms; the goal is to reject the wrong phrase for a clear reason. That rejection is what turns recognition into usable knowledge.

When teaching or self-reviewing 良药苦口, ask the learner to mark source, meaning, use case, wrong case, and one example. If any mark is missing, return to the entry section that supplies it rather than guessing from the headword alone.

teacher feedback is the first test zone for 良药苦口, but it is not the only possible use. Before using the phrase, name the speaker, the object being judged, and the nearest tested context: teacher feedback, friendship advice, tone boundary, usage boundary, misuse boundary, comparison check, context setup, teacher correction. Then choose among bitter medicine, good advice can be hard to hear, a hard truth that helps as translation candidates and reject at least one candidate out loud. A useful final check is to compare the sentence with yi-zhen-jian-xue and gai-xie-gui-zheng; if one of those nearby entries explains the situation with less strain, the nearby phrase is the better learner choice.

When 良药苦口 is translated as bitter medicine, the English should still preserve the phrase's tone. Keep corrective and sincere and the learning use area visible when the audience is still learning the idiom. If a short translation hides the warning "Do not use it for any unpleasant sentence; the unpleasantness must have corrective value.", choose a fuller English explanation instead. This matters because the strongest chengyu pages should help readers decide when not to use the most convenient English equivalent.

Example Sentences

Each example labels the situation so you can choose a natural English translation.

teacher feedback

这次批评听起来刺耳，但良药苦口，他知道老师是为他好。

Zhè cì pīpíng tīng qǐlái cì'ěr, dàn liángyàokǔkǒu, tā zhīdào lǎoshī shì wèi tā hǎo.

The criticism sounded harsh, but good medicine is bitter; he knew the teacher wanted to help him.

friendship advice

朋友指出我的问题时，我一开始不舒服，后来才明白良药苦口。

Péngyǒu zhǐchū wǒ de wèntí shí, wǒ yì kāishǐ bù shūfu, hòulái cái míngbai liángyàokǔkǒu.

When my friend pointed out my problem, I first felt uncomfortable and only later understood that useful advice can be bitter.

tone boundary

良药苦口不是说话难听的借口，关键是建议真的能治问题。

Liángyàokǔkǒu bú shì shuōhuà nántīng de jièkǒu, guānjiàn shì jiànyì zhēn de néng zhì wèntí.

Good medicine being bitter is not an excuse for ugly speech; the point is that the advice truly treats the problem.

usage boundary

只有原因和语气都清楚时，这句话才适合用良药苦口。

zhi you yuan yin he yu qi dou qing chu shi zhe ju hua cai shi he yong liang yao ku kou

Only use 良药苦口 when the cause and tone are both clear, not just because the topic feels nearby.

misuse boundary

如果只是普通情况，不要为了显得有文化而硬说良药苦口。

ru guo zhi shi pu tong qing kuang bu yao wei le xian de you wen hua er ying shuo liang yao ku kou

If the situation is ordinary, do not force 良药苦口 just to make the sentence sound more cultured.

comparison check

比较近义成语以后，再决定这里是不是应该写良药苦口。

bi jiao jin yi cheng yu yi hou zai jue ding zhe li shi bu shi ying gai xie liang yao ku kou

After comparing nearby chengyu, decide whether 良药苦口 is really the phrase the sentence needs.

context setup

这段话先说明对象和原因，所以良药苦口读起来不突兀。

zhe duan hua xian shuo ming dui xiang he yuan yin suo yi liang yao ku kou du qi lai bu tu wu

The passage names the object and cause first, so 良药苦口 does not feel abrupt.

teacher correction

老师让学生先解释为什么不用别的词，再用良药苦口造句。

lao shi rang xue sheng xian jie shi wei shen me bu yong bie de ci zai yong liang yao ku kou zao ju

The teacher asks students to explain why another phrase would be wrong before writing a sentence with 良药苦口.

Story and Cultural Context

良药苦口 depends on an old and familiar experience: medicine that helps may not taste pleasant. The phrase transfers that experience to speech. Advice that corrects a real problem may hurt pride, interrupt comfort, or expose a weakness, but it can still be valuable if it helps the listener recover, improve, or avoid another mistake. Modern use is common in education, family conversations, leadership feedback, and self-reflection. The phrase should not be treated as permission for harshness; the medicine image requires a real cure, not only bitterness. 良药苦口 is easy to remember because the body understands bitterness before the mind accepts the cure. That is why the phrase works so well for feedback. A person may dislike the taste of correction, but if the advice names a real problem and helps solve it, the unpleasantness can be worthwhile. The phrase is not a license to be cruel. The medicine image includes diagnosis, purpose, and benefit. In modern use, the best sentences show the problem being treated and the relationship that makes the advice trustworthy. For this entry, the origin note is only the beginning of the explanation. The useful question is why 良药苦口 survived as a portable judgment rather than as a decorative allusion. The classical story route gives the reader an image, but the modern sentence must still prove its own fit. A learner should ask three things: what concrete object is being judged, what evidence in the sentence supports that judgment, and what tone the phrase adds that a plain English adjective would not add. This is why the page tests 良药苦口 through teacher feedback, friendship advice, tone boundary, usage boundary, misuse boundary; each context changes the pressure on the phrase and shows whether the idiom is acting as praise, warning, neutral description, or criticism. The story or usage background also has a translation boundary. 良药苦口 can point toward bitter medicine, good advice can be hard to hear, a hard truth that helps, but those English choices are not interchangeable. One version may preserve the image, another may sound natural in a classroom answer, and another may be safer in a workplace or essay sentence. The entry therefore treats public references as source cards, not as a paragraph order to imitate. Headword checks, story labels, and English equivalents are separated first; only after that are they rebuilt into the learner path used here: answer, label, examples, wrong-use clinic, comparison, story, and practice. The most common failure is overextension. Because 良药苦口 has a memorable surface, learners may reach for it whenever a topic feels close. The better habit is to compare it with 一针见血 and 改邪归正 and with 顶礼膜拜 and 马马虎虎 before writing. If the rejected phrase is hard to reject, the sentence probably has not supplied enough evidence. If the rejected phrase is easy to reject, the learner can explain the boundary and use 良药苦口 with confidence. That is the practical purpose of the origin section: it turns cultural memory into a sentence-level decision instead of leaving the reader with a story and no next action.

Learning point: Useful correction may feel unpleasant, but usefulness and sincerity must be real.

Open the dedicated story page

Editorial Notes

These notes turn the entry into a decision path, not a loose definition.

First answer before details

良药苦口 should first be read as a decision about good advice can be hard to hear, not as a collectible story label. The classical story helps memory, but the reader's real task is to decide whether the modern sentence is making a neutral judgment with enough evidence. Start with the object being described, then ask what happened, who is being judged, and whether the tone is fair. If those details are missing, the idiom will feel like learned decoration rather than useful Chinese. This first-answer rule also helps teachers and translators: they can explain the phrase quickly before deciding whether a longer story, comparison, or correction block is needed.

Example clinic

The examples for 良药苦口 deliberately cover teacher feedback, friendship advice, tone boundary, usage boundary, misuse boundary because a learner needs more than one successful sentence before the phrase becomes usable. Read the Chinese sentence, then explain in plain English why this phrase is more precise than a simple adjective or loose translation. A strong example names the context, shows the evidence, and makes the tone visible. A weak example merely places the chengyu near a related topic. This habit prevents a common error: remembering the literal image but forgetting the social judgment carried by the phrase. When the example feels forced, return to the meaning line and choose a plainer wording.

Comparison boundary

Before using 良药苦口, compare it with 一针见血 and 改邪归正 and, when possible, with 顶礼膜拜 and 马马虎虎. The comparison is not a synonym game. Nearby chengyu often share effort, caution, wisdom, or evaluation as a topic, while differing in cause, timing, and emotional force. A good learner sentence can explain why the rejected phrase fails. If that explanation is impossible, the chosen idiom is probably too loose. This is also the cleanest internal-link reason: the next page exists because it helps the reader reject a tempting but wrong choice. The comparison should leave a reusable rule, not merely another link to click.

Wrong-use trigger

良药苦口 should be rejected when the sentence lacks an object, hides the reason for the judgment, or uses the idiom only because it sounds literary. The safest correction is to rewrite the sentence in plain English first, then add the chengyu only if it sharpens the meaning. If the tone becomes unfair, choose a gentler nearby phrase. If the source image is memorable but the modern object does not match, use the story only as background and do not force the idiom into the sentence. This wrong-use trigger is what keeps the entry from becoming a long but vague dictionary page.

Source synthesis note

良药苦口 uses public references as checkpoints rather than as a structure to copy. One source may help with the headword, another with a story or image, and another with English translation range. The page then rebuilds those checks into its own learner order: short answer, label, examples, misuse, collocation, guide, story, and practice. This matters because a single-source paraphrase would give readers a familiar-looking article but not a better learning tool. The editorial value here is the decision path: what to use, what not to use, what to compare, and how to test the phrase in a new sentence.

Practice This Decision

Answer a focused quiz question, then come back to the examples and misuse clinic if the near phrase feels tempting.

Start focused quizReview mistakes first