Use primeval when you want to suggest something has existed from the beginning. The Big Bang? Dinosaur bones? Ancient trees? Yep — primeval.

The adjective primeval is from the Latin root words primus, meaning "first," and aevum, meaning "age." You might have an irrational, primeval fear of monsters — meaning that your monster fear has been there for as long as you can remember.

Definitions of primeval
  1. adjective
    having existed from the beginning; in an earliest or original stage or state
    “the forest primeval
    synonyms: aboriginal, primaeval, primal, primordial
    at or near the beginning of a period of time or course of events or before the usual or expected time
Word Family