prehistoric

adjective

variants or less commonly prehistorical
Synonyms of prehistoricnext
1
: of, relating to, or existing in times antedating written history
2
: of or relating to a language in a period of its development from which contemporary records of its sounds and forms have not been preserved
3
: regarded as being outdated or outmoded
prehistoric attitudes

Examples of prehistoric in a Sentence

His attitudes about women are downright prehistoric. prehistoric notions about mental illness that have no place in today's world
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Or even face off with prehistoric giants at Jurassic World? Lindsay Kimble, PEOPLE, 25 June 2026 Some experts called the circle one of the most important prehistoric sites in North America. Andres Viglucci, Miami Herald, 30 June 2026 The museum uses Akrotiri as a point of reference for the life and culture of prehistoric Thira. Noel Burgess, Forbes.com, 1 July 2026 Following a string of low-budget hits, Wheatley was handed the reins of the sequel to the smash Jason Statham-starring action film about a prehistoric shark run amok in the modern world. Christopher Vourlias, Variety, 20 June 2026 See All Example Sentences for prehistoric

Word History

First Known Use

1832, in the meaning defined at sense 1

Time Traveler
The first known use of prehistoric was in 1832

Cite this Entry

“Prehistoric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prehistoric. Accessed 7 Jul. 2026.

Kids Definition

prehistoric

adjective
: of, relating to, or existing in times before written history
prehistoric animals

More from Merriam-Webster on prehistoric

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!