unliterary vs informal

unliterary and informal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unliterary	No	Yes	No	No
informal	No	Yes	No	No

unliterary (adjective)	informal (adjective)
marked by lack of affectation or pedantry	not formal
	used of spoken and written language
	having or fostering a warm or friendly and informal atmosphere
	not officially recognized or controlled