colloquial vs informal

colloquial and informal both are adjectives.

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

colloquial (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