immemorial /ˌɪməˈmorijəl/ adjective Learner's definition of IMMEMORIAL
formal + literary
: very old or ancient : from a time so long ago that it cannot be remembered古老的;远古的;无法追忆的 -
the immemorial roots of human spirituality人类精神的远古渊源
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People have been creating art since time immemorial. [=a very long time ago]远古以来,人们就一直在创造艺术。
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stories passed down from time immemorial从远古时代流传下来的故事
— immemorially
/ˌɪməˈmorijəli/ adverb