benumbed vs numb

benumbed and numb both are adjectives.

Word	Noun	Adjective	Verb	Adverb
benumbed	No	Yes	No	No
numb	No	Yes	Yes	No

As adjectives, benumbed and numb are synonyms defined as:

Other synonyms of benumbed include asleep.

benumbed (adjective)	numb (adjective)
lacking sensation	so frightened as to be unable to move; stunned or paralyzed with terror; petrified
having lost or been caused to lose interest because of overexposure	lacking sensation
	(followed by `to') not showing human feeling or sensitivity; unresponsive

benumbed (verb)	numb (verb)
	make numb or insensitive