effectual vs telling

effectual is not a noun while telling is a noun.

Word	Noun	Adjective	Verb	Adverb
effectual	No	Yes	No	No
telling	Yes	Yes	No	No

effectual (noun)	telling (noun)
	informing by words
	an act of narration
	disclosing information or giving evidence about another

effectual (adjective)	telling (adjective)
producing or capable of producing an intended result or having a striking effect	producing a strong effect
having legal efficacy or force	disclosing unintentionally something concealed
	powerfully persuasive