King's Kung-Fu& Tai Chi

Chinese symbol for “involuntarily”

不由自主
bù yóu zì zhǔ
(idiom) can't help but; involuntarily

The closest CC-CEDICT match for involuntarily is 不由自主 (bù yóu zì zhǔ), defined as: (idiom) can't help but; involuntarily.

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Characters and stroke order

不 bù
no, not, un-; negative prefix
radical 1 ⼀ · 4 strokes
由 yóu
cause, reason; from
radical 102 ⽥ · 5 strokes
自 zì
self; private, personal; from
radical 132 ⾃ · 6 strokes
主 zhǔ
to own; to host; master; host; lord
radical 3 ⼂ · 5 strokes

Other Chinese words for “involuntarily”

WordPinyinMeaning
失声 (失聲)shī shēngto lose one's voice; (to cry out) involuntarily

Related words

Other words that share a character with 不由自主.

WordPinyinMeaning
不是bù shìno; is not
不能bù néngcannot; must not
不会 (不會)bù huìimprobable; unlikely
不过 (不過)bù guòonly; merely
不同bù tóngdifferent; distinct
由于 (由於)yóu yúdue to; as a result of
自由zì yóufreedom; liberty; free; unrestricted
理由lǐ yóureason; grounds
自己zì jǐoneself; (attributive) one's own
主要zhǔ yàomain; principal; major; primary

See also: Japanese symbol for “involuntarily”.

Data: CC-CEDICT (CC BY-SA 4.0); Unihan Database (Unicode License v3); Make Me a Hanzi (Arphic Public License (graphics.txt); LGPL-3.0-or-later (dictionary.txt)); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.