幾久しい いくひさしい Meanings い-adjective everlasting; eternal; continued; unchanging (usu. adverbially as 幾久しく) See also: 幾久しく (いくひさしく). Kanji 幾 how many. Read as いく. 久 long time. Read as ひさしい. Words containing 幾久しい 幾久しく (いくひさしく) forever Jinuma: Japanese Dictionary · Word lists