primeval
/praɪˈmiːvəl/(亦作primaeval)
adjective
1- of the earliest ages in the history of the world原始的, 远古的：
mile after mile of primeval forest.
连绵几英里的原始森林。
1.1
- (of feelings or actions) based on primitive instinct; raw and elementary（情感, 行为）本能的, 原生的：
a primeval desire.
本能的欲望。
派生词
primevally
adverb词源
mid 17th cent.: from Latin primaevus （from primus 'first'+aevum 'age'）+-al.