不清楚 bùqīngchu unclear 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清楚 qīngchu adjective clear clear; distinct; without ambiguity; easily seen, heard, or understood