前功尽弃 qiángōngjìnqì to waste all previous efforts Origin Definitions Defs Strokes Stroke Words Sentences Sents 前 qián prepositionlocative before (bound form) ago; before; earlier; previously功 gōng verbnoun achievement achievement; result; success; a positive outcome from effort尽 盡 jìn verb to use up to use up; to exhaust; to finish; to end弃 棄 qì verb to abandon to discard; to throw away; to relinquish; to give up