不小心 bùxiǎoxīn carelessly Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 他不小心把手中的饭碗掉在地上摔碎了。 tā bùxiǎoxīn bǎ shǒuzhōng de fànwǎn diào zài dì shàng shuāisuì le. He accidentally dropped his rice bowl and shattered it on the floor. Source: Dong Chinese Dictionary