informal vs unliterary

informal and unliterary both are adjectives.

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

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