estimable vs worthy

estimable is not a noun while worthy is a noun.

Word	Noun	Adjective	Verb	Adverb
estimable	No	Yes	No	No
worthy	Yes	Yes	No	No

estimable (noun)	worthy (noun)
	an important, honorable person (word is often used humorously)

estimable (adjective)	worthy (adjective)
deserving of respect or high regard	having worth or merit or value; being honorable or admirable
may be computed or estimated	worthy of being chosen especially as a spouse
deserving of esteem and respect	having qualities or abilities that merit recognition in some way