crushing vs devastating

crushing is a noun but devastating is not a noun.

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

As adjectives, crushing and devastating are synonyms defined as:

crushing and devastating: physically or spiritually devastating; often used in combination

crushing (noun)	devastating (noun)
forceful prevention; putting down by power or authority

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