吃不准 chībùzhǔn to be unsure Definitions Defs Origin Strokes Stroke Words Sentences Sents 吃 chī to understand to grasp; to understand thoroughly; to be sure of不 bu particle [potential] Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction准 準 zhǔn adjective accurate accurate; exact; precise; correct