slangy vs informal

slangy and informal both are adjectives.

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

slangy (adjective)	informal (adjective)
constituting or expressed in slang or given to the use of slang	not formal
	used of spoken and written language
	having or fostering a warm or friendly and informal atmosphere
	not officially recognized or controlled