conversational vs informal

conversational and informal both are adjectives.

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

conversational (adjective)	informal (adjective)
characteristic of informal spoken language or conversation	not formal
	used of spoken and written language
	having or fostering a warm or friendly and informal atmosphere
	not officially recognized or controlled