肆 (sì): four (banker's anti-fraud numeral), unrestrained, wanton

肆 (sì) is a Chinese character meaning “four (banker's anti-fraud numeral).” Classified as HSK Level 7-9 (HSK 3.0 Standard, CLEC 2022), it is composed of 镸 (structural) and 聿 (structural). It ranks #2365 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 肆 having long 镸 hair 聿. Its radical form 聿 (brush) appears in many related characters such as 肃 (sù, respectful), 肇 (zhào, at first).

Spoken pronunciation

Definitions

  1. four (banker's anti-fraud numeral)
  2. unrestrained
  3. wanton

Etymology & Origin

肆

ideographicHaving long 镸 hair 聿

Decomposition: ⿰镸聿 (layout: left-right)

Stroke Order

1
2
3
4
5
6
7
8
9
10
11
12
13

Practice writing 肆 with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

Common Compounds

WordPinyinMeaning
大肆adverbdà sìwantonly
肆意adverbsì yìwantonly
肆虐verbsì nüèto wreak havoc
放肆adjectivefàng sìwanton
肆无忌惮phrasesì wú jì dànabsolutely unrestrained
大肆攻击dà sì gōng jīto vilify sb wantonly
肆意妄为sì yì wàng wéisee 恣意妄為|恣意妄为
肆行verbsì xíngto act recklessly
大肆鼓吹dà sì gǔ chuīto advocate vociferously
食肆nounshí sìrestaurant
酒肆nounjiǔ sìwine shop
恣肆adjectivezì sìunrestrained
12
Total compounds
42
As first character
42
As last character
17
As middle character

肆 appears in 12 compound words: 42 as the first character, 42 as the last, and 17 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 肆 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

惮dàn
0.636288 co-occurrences
虐nüè
0.6253,243 co-occurrences
掠lüè
0.506740 co-occurrences
忌jì
0.501692 co-occurrences
食shí
0.4854,309 co-occurrences
拾shí
0.455310 co-occurrences
屠tú
0.435388 co-occurrences
妄wàng
0.430180 co-occurrences
猖chāng
0.42750 co-occurrences
抨pēng
0.421110 co-occurrences

Idioms & Chengyu (2)

肆无忌惮sìwújìdànHSK 7+

brazen; unbridled; wanton; unscrupulous

phrase
肆意妄为sì yì wàng wéiHSK 7+

see 恣意妄為|恣意妄为

phrase

Example Sentences

AI-Generated

这个肆字的意思与它的部首有关。

zhè gě sì zì de yì sī yú tā de bù shǒu yǒu guān .

The meaning of the character "肆" is related to its radical.

Hk01.comMar 2026

港府强烈谴责英国《香港半年报告》 斥肆意抹黑港人权和法治状况

gǎng fǔ qiáng liè qiǎn zé yīng guó xiāng gǎng bàn nián bào gào chì sì yì mā hēi gǎng rén quán hé fǎ zhì zhuàng kuàng

The Hong Kong Government strongly condemns the UK’s “Hong Kong Six-Monthly Report,” denouncing its arbitrary smearing of Hong Kong’s human rights and rule of law situation

東方日報Mar 2026

正论:脑膜炎肆虐英国 港个案不容忽视

zhèng lùn : nǎo mó yán sì nüè yīng guó gǎng gè àn bù róng hū shì

Editorial: Meningitis Rages in the UK; Hong Kong Cases Must Not Be Ignored

English News - RthkMar 2026

渔护署昨于乐富一食肆检获两条濒危野生活苏眉 市值约1.7万元

yú hù shǔ zuó yú lè fù yī shí sì jiǎn huò liǎng tiáo bīn wēi yě shēng huó sū méi shì zhí yuē 1 . 7 wàn yuán

The Agriculture, Fisheries and Conservation Department seized two live endangered humphead wrasse worth approximately HK$17,000 from a restaurant in Lok Fu yesterday.

StheadlineMar 2026

乐富食肆疑售濒危野生活苏眉 负责人未能出示许可证...

lè fù shí sì yí shòu bīn wēi yě shēng huó sū méi fù zé rén wèi néng chū shì xǔ kě zhèng . . .

A restaurant in Lok Fu is suspected of selling endangered wild Siamese macaques; the owner was unable to produce a permit...

Tatoeba

别对我放肆,小姑娘!

Bié duì wǒ fàngsì, xiǎogū niáng!

Don't get sassy with me young lady!

Character Family

聿 Radical Family — Characters sharing the brush radical

Related Characters

Homophones — Characters pronounced sì

Frequently Asked Questions

What does 肆 (sì) mean in Chinese?
肆 (sì) primarily means "four (banker's anti-fraud numeral)." It is classified as HSK Level 7-9, making it an expert-level character. It ranks #2365 in character frequency.
How many strokes does 肆 have?
肆 is written with 13 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 肆?
The radical associated with 肆 is 聿 (brush). This radical appears in many characters related to brush.
What are the components of 肆?
肆 is composed of: 镸 (structural), 聿 (structural). Its IDS decomposition is ⿰镸聿 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 肆?
Common words with 肆 include: 大肆 (dà sì, "wantonly"); 肆意 (sì yì, "wantonly"); 肆虐 (sì nüè, "to wreak havoc"); 放肆 (fàng sì, "wanton"); 肆无忌惮 (sì wú jì dàn, "absolutely unrestrained"). There are over 12 compound words containing this character.
What characters sound the same as 肆 (sì)?
Several characters share the pronunciation sì: 斯 (Slovakia), 思 (to think, thought), 死 (to die), 四 (four), and 6 more. Context and tones help distinguish between them in speech and writing.
Is 肆 the same in simplified and traditional Chinese?
Yes, 肆 is written the same way in both simplified and traditional Chinese.

Practice writing 肆 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.