不要紧 bùyàojǐn HSK4 unimportant Origin Definitions Defs 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要紧 要緊 yàojǐn adjective serious serious or severe; usually used in the negative to mean it is not a big deal