Need synonyms for whisper campaign? Here's a list of similar words from our thesaurus that you can use instead.
Noun
A method of persuasion in which damaging rumors or innuendo are deliberately spread concerning a person or other target, while the source of the rumors tries to avoid detection
“Both publicly and in a particularly unscrupulous whisper campaign the Liberals tried to change the aspect from one of folly to one of personal corruption and some of this got through to the voters.”