unfashionable vs prehistoric

unfashionable and prehistoric both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unfashionable	No	Yes	No	No
prehistoric	No	Yes	No	No

unfashionable (adjective)	prehistoric (adjective)
not in accord with or not following current fashion	of or relating to times before written history
unpopular and considered unappealing or unfashionable at the time	belonging to or existing in times before recorded history
	outdated