annihilative vs devastating

annihilative and devastating both are adjectives.

Word	Noun	Adjective	Verb	Adverb
annihilative	No	Yes	No	No
devastating	No	Yes	No	No

As adjectives, annihilative and devastating are synonyms defined as:

annihilative and devastating: wreaking or capable of wreaking complete destruction

Other synonyms of annihilative include annihilating, withering.

annihilative (adjective)	devastating (adjective)
wreaking or capable of wreaking complete destruction	physically or spiritually devastating; often used in combination
	making light of
	wreaking or capable of wreaking complete destruction