unceremonious vs informal

unceremonious and informal both are adjectives.

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

unceremonious (adjective)	informal (adjective)
without due formalities	not formal
without ceremony or formality	used of spoken and written language
	having or fostering a warm or friendly and informal atmosphere
	not officially recognized or controlled