Prehistoric

a.

1.

Of or pertaining to a period before written history begins; as, the prehistoric ages; prehistoric man.

Adj.	1.	prehistoric - belonging to or existing in times before recorded history; "prehistoric settlements"; "prehistoric peoples" Synonyms: prehistorical
	2.	prehistoric - of or relating to times before written history; "prehistoric archeology"
	3.	prehistoric - no longer fashionable; "my mother has these prehistoric ideas about proper clothes"

aboriginal, ancestral, ancient, antediluvian, antepatriarchal, antiquated, atavistic, autochthonous, earliest, early, erstwhile, fore, former, fossil, humanoid, immemorial, late, old, old-fashioned, olden, once, onetime, passe, past, patriarchal, preadamite, preglacial, prehuman, previous, primal, prime, primeval, primitive, primogenial, primoprimitive, primordial, prior, pristine, protohistoric, protohuman, quondam, recent, sometime, then