To judge disapprovingly; find fault (with); censure
To speak of in a slighting or disrespectful way.
To behave arrogantly.
To blur or smear, as in printing
To cause to be blurry or spread in unwanted places:
To express strong disapproval of
Find another word for bad-mouth. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for bad-mouth, like: criticize, disparage, malign, insult, slur, smear and censure.