obliteration vs eradication

obliteration and eradication both are nouns.

Word	Noun	Adjective	Verb	Adverb
obliteration	Yes	No	No	No
eradication	Yes	No	No	No

As nouns, obliteration and eradication are synonyms defined as:

obliteration and eradication: the complete destruction of every trace of something

obliteration (noun)	eradication (noun)
destruction by annihilating something	the complete destruction of every trace of something
the complete destruction of every trace of something