prehistoric

definition: no longer fashionable
example: my mother has these prehistoric ideas about proper clothes
speech part: adjective
synonyms: out
definition: belonging to or existing in times before recorded history
example: prehistoric settlements
speech part: adjective
synonyms: prehistorical
definition: of or relating to times before written history
example: prehistoric archeology
speech part: adjective
synonyms:

prehistoric is explained and pronounced

How prehistoric is being used?