impotent vs sterile

impotent and sterile both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impotent	No	Yes	No	No
sterile	No	Yes	No	No

impotent (adjective)	sterile (adjective)
lacking power or ability	incapable of reproducing
(of a male) unable to copulate	free of or using methods to keep free of pathological microorganisms
	deficient in originality or creativity; lacking powers of invention