Synonyms for prehistoric

Adjective

1. prehistoric, prehistorical, past (vs. present) (vs. future)

usage: belonging to or existing in times before recorded history; "prehistoric settlements"; "prehistoric peoples"

2. prehistoric

usage: of or relating to times before written history; "prehistoric archeology"

3. prehistoric, unfashionable (vs. fashionable), unstylish

usage: no longer fashionable; "my mother has these prehistoric ideas about proper clothes"