insignificant vs inappreciable

insignificant and inappreciable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
insignificant	No	Yes	No	No
inappreciable	No	Yes	No	No

insignificant (adjective)	inappreciable (adjective)
devoid of importance, meaning, or force	too small to make a significant difference
signifying nothing
of little importance or influence or power; of minor status
small and unimpressive