important vs unimportant

important and unimportant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
important	No	Yes	No	No
unimportant	No	Yes	No	No

important (adjective)	unimportant (adjective)
of great significance or value	not important
of extreme importance; vital to the resolution of a crisis	devoid of importance, meaning, or force
important in effect or meaning
having or suggesting a consciousness of high position
having authority or ascendancy or influence