immemorial

US [ˌɪməˈmɔriəl]
UK [ˌɪməˈmɔːriəl]
  • adj.古老的;远古的;无法追忆的
  • Web太古的;极古的;可考
immemorial
adj.
1.
古老的;远古的;无法追忆的that has existed for longer than people can remember
an immemorial tradition
古老的传统
My family has lived in this area from time immemorial(= for hundreds of years) .
我的家族在这个地区已经生活了不知有多少年了。