不留心 bùliúxīn careless Definitions Defs Origin Strokes Stroke Words Sentences Sents 不 bù adverb not Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings留心 liúxīn to pay attention to keep an eye out; to note or observe; to be mindful of
