尽瘁 jìncuì exhaust efforts Origin Definitions Defs Strokes Stroke Words Sentences Sents 鞠躬尽瘁 jūgōngjìncuì striving to the utmost to bend to a task and spare no effort; striving to the utmost鞠躬尽瘁，死而后已 jūgōngjìncuì, sǐ'érhòuyǐ devoted unto death To dedicate oneself heart and soul to a task and work tirelessly until the day one dies.