This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of, relating to, or belonging to the era before recorded history.

adj. Of or relating to a language before it is first recorded in writing.

adj. Of relating to the epoch before written record.

adj. Nonmodern.

adj. Of or pertaining to a period before written history begins

Existing in or relating to time antecedent to the beginning of recorded history: as, prehistoric races; the prehistoric period of a country.

adj. belonging to or existing in times before recorded history

adj. no longer fashionable

adj. of or relating to times before written history

"It is not impossible that they may have existed into the period which we call prehistoric, and that monsters far larger than any which we have yet discovered may have lingered until the time when man began to increase upon the earth, to spread over its surface, and to carve upon wood and stone representations of the most striking objects around him."

past    unstylish    unfashionable   

prehistorically    prehistory   

ancient   

Doric    boric    caloric    choric    dysphoric    euphoric    historic    meteoric    moric    perchloric   

Babylonian    extinct    primeval    aboriginal    carnivorous    mythical    primitive    immemorial    mediæval    ancestral