obloquy vs calumniation

obloquy and calumniation both are nouns.

Word	Noun	Adjective	Verb	Adverb
obloquy	Yes	No	No	No
calumniation	Yes	No	No	No

As nouns, obloquy and calumniation are synonyms defined as:

obloquy and calumniation: a false accusation of an offense or a malicious misrepresentation of someone's words or actions

Other synonyms of obloquy include calumny, defamation, hatchet job, traducement.

obloquy (noun)	calumniation (noun)
a false accusation of an offense or a malicious misrepresentation of someone's words or actions	a false accusation of an offense or a malicious misrepresentation of someone's words or actions
state of disgrace resulting from public abuse