Badmouth
ahd-5
transitive verb.
To criticize or disparage, often spitefully or unfairly.
Wiktionary, Creative Commons Attribution/Share-Alike License
verb.
To
criticize
or
malign
, especially unfairly or
spitefully
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
speak unfavorably about
Word Usage
"It's already been mentioned that all the other film studios and filmmakers badmouth each other for the prize anyway (surprise, surprise)."
Hypernym
Words that are more generic or abstract
asperse
besmirch
calumniate
defame
denigrate
verb-form
badmouthed
badmouthing
badmouths