Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb badmouth

1 sense of badmouth

Sense 1
badmouth, malign, traduce, drag through the mud -- (speak unfavorably about; "She badmouths her husband everywhere")
       => defame, slander, smirch, asperse, denigrate, calumniate, smear, sully, besmirch -- (charge falsely or with malicious intent; attack the good name and reputation of someone; "The journalists have defamed me!" "The article in the paper sullied my reputation")