bad–mouth

to express scornfully one's low opinion of she promptly bad-mouthed that awful movie to everyone she knew Synonyms bad-mouth, belittle, cry down, denigrate, deprecate, depreciate, derogate, diminish, dis (also diss) [slang], discount, dismiss, disparage, kiss off, minimize, play down, poor-mouth, put down, run down, talk down, trash, trash-talk, vilipend, write offRelated Words discommend; abuse, scold; disapprove (of), dislike; censure, condemn, criticize, denounce, reprehend, reprobate; asperse, defame, malign, rip, slander, slur, traduce, vilify; discredit, disgraceNear Antonyms approve, countenance, endorse (also indorse), favor, recommend, sanction; commend, compliment, eulogizeAntonyms acclaim, applaud, exalt, extol (also extoll), glorify, laud, magnify, praise