Defamatory is a synonym of calumnious.
As adjectives the difference between defamatory and calumnious
is that defamatory is damaging to someone's reputation, especially if untrue while calumnious is possessing the traits of calumny.
defamatory
English
Adjective
(
en adjective)
damaging to someone's reputation, especially if untrue
Synonyms
* See also
Related terms
* defamation
calumnious
English
Derived terms
* calumniousness
Synonyms
* See also