primaeval
adjective/praɪˈmiːvl/
/praɪˈmiːvl/
(British English) (also primeval British and North American English)
[usually before noun]- from the earliest period of the history of the world, very ancientTopics Historyc2
- (formal) (of a feeling, or a desire) very strong and not based on reason, as if from the earliest period of human life
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primaeval