assess vs assessable

assess is not an adjective while assessable is an adjective.

Word	Noun	Adjective	Verb	Adverb
assess	No	No	Yes	No
assessable	No	Yes	No	No

assess (adjective)	assessable (adjective)
	capable of being considered carefully
	capable of being assessed especially for the purpose of taxation

assess (verb)	assessable (verb)
evaluate or estimate the nature, quality, ability, extent, or significance of
estimate the value of (property) for taxation
set or determine the amount of (a payment such as a fine)
charge (a person or a property) with a payment, such as a tax or a fine