Dreye权威释义 | immemorial

a.

（因年代久远而）无法追忆的；古老的；远古的
There have been ponies on Dartmoor from time immemorial.
自远古以来，达特穆尔高原就一直有小型马。

ad.

immemorially

同义参见:

反义参见:

以上来源于：《英汉大辞典》

adj.

very old or long past:

from time immemorial.

C17: from med. L. immemorialis, from in- ‘not’ + memorialis ‘relating to the memory’.

以上来源于：《简明牛津英语词典》