terminable vs impermanent

terminable and impermanent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
terminable	No	Yes	No	No
impermanent	No	Yes	No	No

terminable (adjective)	impermanent (adjective)
capable of being terminated after a designated time	not permanent; not lasting
	existing or enduring for a limited time only