languishEnglishOxford American Thesauruslanguish verb 1 the plants languished and died: weaken, grow weak, deteriorate, decline, go into a decline; wither, droop, flag, wilt, fade, fail, waste away; informal go downhill. ▷antonyms thrive, flourish. 2 the general is now languishing in prison: waste away, rot, decay, wither away, molder, be abandoned, be neglected, be forgotten, suffer; be disregarded, experience hardship. 3 archaic she still languished after Richard: pine for, yearn for, ache for, long for, sigh for, desire, want, hanker after, carry a torch for; grieve for, mourn, miss; literary repine.