telling vs effective

telling is a noun but effective is not a noun.

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

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

telling (adjective)	effective (adjective)
producing a strong effect	producing or capable of producing an intended result or having a striking effect
disclosing unintentionally something concealed	existing in fact; not theoretical; real
powerfully persuasive	able to accomplish a purpose; functioning effectively
	works well as a means or remedy
	ready for service
	exerting force or influence