Active
Prehistoric
Prehistoric adjective - Having passed its time of use or usefulness.
Usage example: prehistoric notions about mental illness that have no place in today's world
Active is an antonym for prehistoric.
Nearby Word: prehistory
Both words in one sentence
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Death World: Ireta, the setting of Dinosaur Planet, has an extremely active ecology, complete with a mix of toxic alien life and adapted prehistoric Earth life.
Source: Creator / Anne McCaffrey -
McCaffrey's Dinosaur Planet is likewise an extremely active ecology, complete with a mix of toxic alien life and adapted prehistoric Earth life.
Source: Death World
Cite this Source
Prehistoric and Active. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/active/prehistoric
Active & Prehistoric. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/active/prehistoric>.
Prehistoric or Active. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/active/prehistoric.
Google Ngram Viewer shows how "active" and "prehistoric" have occurred on timeline