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癫 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
癫diāncrazy, insane; madness, manian, 21 strokes, radical 疒, rank #21866, Very Hard
癫diānmentally derangedunknown, 21 strokes, radical 疒, rank #21866, Very Hard
diān(dian1)dian T1
  1. 1crazy, insane; madness, mania
  2. 2mentally deranged
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March 24, 2026

癫(癲)diān(dian1)

The character 癫 (diān) refers to a state of madness or insanity, often used to describe someone who is mentally unwell or exhibiting erratic behavior. It can also imply a sense of extreme enthusiasm or mania in certain contexts, such as being 'crazy about' something.

Strokes21Radical疒Frequency#21866DifficultyVery Hard
Cultural note

In traditional Chinese medicine, mental health issues are often viewed through a holistic lens, and terms like 癫 may reflect complex beliefs about the mind and body connection. This character appears in discussions about historical figures believed to be 'mad geniuses'.

Memory tip

Imagine a person with wild hair (the radical 疒, which relates to sickness) running around acting 'crazy' (癫) in a circus. The wildness of their actions is memorable and connects to the sound 'diān', helping you remember that this character relates to madness.

Meanings of 癫

diān(dian1)
1crazy, insane; madness, mania
2mentally deranged
Exercise 1 of 2

By ear

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About 癫

癫Simplified
癲Traditional
21Strokes
疒Radical
名词míngcínoun (n.)Part of Speech
#—Frequency Rank

Podcast: 癫

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Podcast: 癫

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AI study notes for 癫

Quick Contrast

癫 (diān) vs 疯 (fēng) — use 癫 for a more nuanced or less severe connotation of madness, while 疯 implies a more extreme or uncontrollable state.

Usage Notes

癫 is typically used in more formal or medical contexts when discussing mental health. Be cautious not to use it lightly in casual conversation, as it can seem insensitive. Common collocations include 癫狂 (diānkuáng - crazy) and 癫痫 (diānxián - epilepsy).

HSK Study Tips

Although 癫 is not part of the official HSK vocabulary, it shares components with other words related to health (like 疒). Students should focus on recognizing the radical and its connotations in context, especially in literature or medical discussions.

Common Mistakes

Learners often confuse 癫 with similar-sounding words like 颠 (diān - to topple), which carries a different meaning. Remember that 癫 specifically relates to mental states, while 颠 relates to physical actions.

AI-enhanced 2026-03-24

Pronunciation of 癫

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Etymology of 癫

Formation typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Explanation

Phonosemantic compound. 疒 represents the meaning and 颠 represents the sound. Simplified form of 癲.

Memory hint

sickness

Semantic (meaning)疒
+
Phonetic (sound)颠
Learn more about Phono-semantic (形声字) characters
Exercise 1 of 1

Origin

癫 = 疒 + 颠. What kind of character does that make it?

Decomposition of 癫

IDS Structure⿸疒颠
癫Full character
=
疒ne4
enclosing
颠dian1
inner
Exercise 1 of 2

Parts

Which of these is part of 癫?

How to say crazy, insane; madness, mania in Chinese

“crazy, insane; madness, mania” in Chinese is癫diān

The character 癫 (diān) refers to a state of madness or insanity, often used to describe someone who is mentally unwell or exhibiting erratic behavior. It can also imply a sense of extreme enthusiasm or mania in certain contexts, such as being 'crazy about' something.

When to use 癫

癫 is typically used in more formal or medical contexts when discussing mental health. Be cautious not to use it lightly in casual conversation, as it can seem insensitive. Common collocations include 癫狂 (diānkuáng - crazy) and 癫痫 (diānxián - epilepsy).

癫 or something close to it

癫 (diān) vs 疯 (fēng) — use 癫 for a more nuanced or less severe connotation of madness, while 疯 implies a more extreme or uncontrollable state.

What learners get wrong

Learners often confuse 癫 with similar-sounding words like 颠 (diān - to topple), which carries a different meaning. Remember that 癫 specifically relates to mental states, while 颠 relates to physical actions.

Write 癫

癫

Practice writing 癫 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar patterns of 癫

癫 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). It carries 2 related meanings, each with its own usage notes below. The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.

Exercise 1 of 3

Fill the gap

Type the missing word. Pinyin works; then pick the character.

他患有____痫,但是拒绝服药治疗。

He was epileptic and refused to take medication for his condition.

Example sentences for 癫 (2)

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1
他患有癫痫,但是拒绝服药治疗。

tā huànyǒu diān xián, dànshì jùjué fú yào zhìliáo。

He was epileptic and refused to take medication for his condition.
2
这次战争疯癫得没底.

zhè cì zhànzhēng fēng diān de méi de.

In this war there is an idiocy without bounds.

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Word Family of 癫

Words containing this character5
癫痫epilepsy癲癇
癫diāncrazy癲
疯癫insane瘋癲
疯疯癫癫deranged瘋瘋癲癲
癫狂mad癲狂
Exercise 1 of 4

Words with 癫

What does 癫痫 mean?

Frequently asked questions about 癫

No, 癫 is more commonly used in medical or literary contexts rather than in casual conversation.

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