疾 (jí): disease

疾 (jí) is a Chinese character meaning “disease.” Classified as HSK Level 5 (HSK 3.0 Standard, CLEC 2022), it is composed of 疒 (semantic) and 矢 (phonetic). It ranks #1265 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 疾 sickness. Its radical form 疒 (illness) appears in many related characters such as 医 (yī, medicine), 病 (bìng, illness), 疼 (téng, ache).

Spoken pronunciation

Definitions

  1. disease

Etymology & Origin

疾

pictophoneticsickness

Decomposition: ⿸疒矢 (layout: surround-from-upper-left)

Stroke Order

1
2
3
4
5
6
7
8
9
10

Practice writing 疾 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

HSK Vocabulary with 疾

WordPinyinMeaningHSK
疾病nounjí bìngdisease5
残疾nouncán jídisabled6

Common Compounds

WordPinyinMeaning
残疾人nouncán jí réndisabled person
疟疾nounnüè jímalaria
痢疾nounlì jidysentery
疾苦nounjí kǔpain and difficulties
大声疾呼phrasedà shēng jí hūto call loudly (idiom)
疾驰verbjí chíto speed along
疾风nounjí fēngstrong wind
恶疾nounè jíunpleasant ailment
痛心疾首phrasetòng xīn jí shǒubitter and hateful (idiom)
疾驶jí shǐ(of a vehicle) to travel at high speed
疾走verbjí zǒuto scamper
迅疾adjectivexùn jírapid
疾速jí sùvery fast
顽疾nounwán jístubborn illness
眼疾手快yǎn jí shǒu kuài(idiom) quick to notice and react
54
Total compounds
30
As first character
30
As last character
41
As middle character

疾 appears in 54 compound words: 30 as the first character, 30 as the last, and 41 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.

Strongest Collocations

Characters that most frequently co-occur with 疾 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

病bìng
0.69065,624 co-occurrences
残cán
0.59310,075 co-occurrences
患huàn
0.5366,532 co-occurrences
扶fú
0.4791,956 co-occurrences
帮bāng
0.4501,960 co-occurrences
乞qǐ
0.440810 co-occurrences
驰chí
0.432353 co-occurrences
卒zú
0.4231,620 co-occurrences
染rǎn
0.4152,304 co-occurrences
疫yì
0.4131,586 co-occurrences

Idioms & Chengyu (12)

不疾不徐bù jí bù xúHSK 7+

neither too fast nor too slow (idiom)

phrase
大声疾呼dàshēngjíhūHSK 5+

to raise a cry of warning; to loudly appeal to the public

phrase
吊死问疾diào sǐ wèn jíHSK 6+

to grieve for the sick and the dying; to show great concern for people's suffering

phrase
奋笔疾书fèn bǐ jí shūHSK 5+

to write at a tremendous speed

phrase
讳疾忌医huìjíjìyīHSK 7+

to avoid seeking medical attention for fear of disease; to conceal one's shortcomings for fear of criticism

phrase
积劳成疾jīláochéngjíHSK 5+

to fall ill because one is overworked and exhausted for a long period of time; to fall ill from prolonged overwork

phrase
疾恶如仇jí è rú chóuHSK 7+

variant of 嫉惡如仇|嫉恶如仇

phrase
手疾眼快shǒu jí yǎn kuàiHSK 5+

see 眼疾手快

phrase
痛心疾首tòngxīnjíshǒuHSK 5+

to be deeply sorrowful and intensely grieve for or abhor something

phrase
无疾而终wújí'érzhōngHSK 5+

to die without illness; to end while unfinished

phrase
眼疾手快yǎn jí shǒu kuàiHSK 5+

(idiom) quick to notice and react

phrase

Showing 11 of 12 idioms containing 疾.

Example Sentences

AI-Generated

这种疾病传播很快,需要采取预防措施。

Zhè zhǒng jíbìng chuánbō hěn kuài, xūyào cǎiqǔ yùfáng cuòshī.

This disease spreads quickly; preventive measures need to be taken.

99 健康网Feb 2026

老年人硬不起来?是不是心血管疾病的预警表现

lǎo nián rén yìng bù qǐ lái ? shì bù shì xīn xiě guǎn jí bìng de yù jǐng biǎo xiàn

The elderly can't get up? Is it an early warning sign of cardiovascular disease?

UdnnewsindexFeb 2026

業界疾呼 放寬司機工時彈性

業 jiè jí hū fàng 寬 sī 機 gōng 時 彈 xìng

The industry is calling for the relaxation of drivers' working hours flexibility

UdnnewsindexFeb 2026

瘦瘦針與眼疾 專家:因果關係未定

shòu shòu 針 與 yǎn jí 專 jiā yīn guǒ 關 係 wèi dìng

Slimming injections and eye diseases Experts: The causal relationship is undetermined

UdnnewsindexFeb 2026

罕見病例 眼疾男打瘦瘦針 眼嚴重出血

hǎn 見 bìng lì yǎn jí nán dǎ shòu shòu 針 yǎn 嚴 chóng chū xiě

Rare case of a man with eye disease who received a slimming injection and severe bleeding from his eye

風傳媒Feb 2026

諾羅新型病毒好毒!疾管署示警年後疫情恐再升溫:至少還會流行半...

諾 羅 xīn xíng bìng dú hǎo dú ! jí guǎn shǔ shì jǐng nián 後 yì qíng kǒng zài shēng 溫 zhì shǎo 還 會 liú háng bàn . . .

The new norovirus is so virulent! The CDC warns that the epidemic may heat up again after the year: at least half of the epidemic will be prevalent...

Tatoeba

你是否身患需服药的疾病?

Nǐ shìfǒu shēn huàn xū fúyào de jíbìng?

Do you suffer from diseases that require medication?

Tatoeba

没有药物能够治疗这种疾病。

Méiyǒu yàowù nénggòu zhìliáo zhèzhǒng jíbìng.

No medicine can cure this disease.

Tatoeba

这些措施可以预防疾病蔓延。

Zhèxiē cuòshī kěyǐ yùfáng jíbìng mànyán.

These measures can prevent the disease from spreading.

Tatoeba

我们视健康为理所当然, 直到疾病侵袭。

Wǒmen shì jiànkāng wèi lǐsuǒdāngrán, zhídào jíbìng qīnxí.

We take health for granted until illness intervenes.

Character Family

Semantic Family — Characters sharing the 疒 (sickness) component

Homophones — Characters pronounced jí

Frequently Asked Questions

What does 疾 (jí) mean in Chinese?
疾 (jí) primarily means "disease." It is classified as HSK Level 5, making it an advanced character. It ranks #1265 in character frequency.
What's the difference between 疾 and 知?
疾 (jí) and 知 (zhī) are often confused. confusable. The key distinguishing feature: 疒 vs 口 (same 矢 component).
How many strokes does 疾 have?
疾 is written with 10 strokes. The correct stroke order matters for recognition and handwriting speed — practice with the animated guide above to build proper technique.
What is the radical of 疾?
The radical associated with 疾 is 疒 (illness). This radical appears in many characters related to illness.
What are the components of 疾?
疾 is composed of: 疒 (semantic), 矢 (phonetic). Its IDS decomposition is ⿸疒矢 with a surround-from-upper-left layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 疾?
Common words with 疾 include: 疾病 (jí bìng, "disease"); 残疾 (cán jí, "disabled"); 残疾人 (cán jí rén, "disabled person"); 疟疾 (nüè jí, "malaria"); 痢疾 (lì ji, "dysentery"). There are over 54 compound words containing this character.
What characters sound the same as 疾 (jí)?
Several characters share the pronunciation jí: 机 (machine, opportunity), 己 (self), 几 (how many), 计 (to calculate), and 5 more. Context and tones help distinguish between them in speech and writing.
Is 疾 the same in simplified and traditional Chinese?
Yes, 疾 is written the same way in both simplified and traditional Chinese.

Practice writing 疾 with real-time feedback

Trace stroke sequences, hear spoken pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.

Character data sourced from Unihan (Unicode Consortium), SUBTLEX-CH frequency corpus (Cai & Brysbaert, 2010), and Make Me a Hanzi (stroke data). Collocation strength measured via NPMI (Normalized Pointwise Mutual Information). Verified by the HanziFeed linguistics team.

HSK classification follows the HSK 3.0 Standard (Center for Language Education and Cooperation, CLEC, 2022 revision). Idiom data from Wiktionary (CC BY-SA 3.0).

Data last verified: March 2026.