impotent vs ineffectual

impotent and ineffectual both are adjectives.

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

impotent (adjective)	ineffectual (adjective)
lacking power or ability	not producing an intended effect
(of a male) unable to copulate	lacking in power or forcefulness
	producing no result or effect