木已成舟 mùyǐchéngzhōu what's done cannot be undone Origin Definitions Defs Strokes Stroke Words Sentences Sents 木 mù noun wood (bound form) wood; timber; lumber已 yǐ adverb already already; used in formal or written contexts to indicate an action has finished or a state has been reached成 chéng verbparticle to become to become; to turn into; to change into舟 zhōu noun boat (bound form) boat; ship; vessel