Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun defamation

2 senses of defamation

Sense 1
defamation, calumny, calumniation, obloquy, traducement, hatchet job -- (a false accusation of an offense or a malicious misrepresentation of someone's words or actions)
       => disparagement, depreciation, derogation -- (a communication that belittles somebody or something)

Sense 2
aspersion, calumny, slander, defamation, denigration -- (an abusive attack on a person's character or good name)
       => attack -- (strong criticism; "he published an unexpected attack on my work")