悠久

(1)continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven"

(2)永遠に、または、無期限に続けるさま

(3)continuing or enduring without marked change in status or condition or place; "permanent secretary to the president"; "permanent address"; "literature of permanent value"

(4)状態、条件、または場所を大きく変えることなく続く、または持ちこたえる

(1)