せんねんいちじつ 千年一日 LinksSentence search for 千年一日Sentence search for せんねんいちじつKanji details for 千, 年, 一 and 日Edit in JMdict Noun1. without intermission for many years; with constancy of purpose for many years; in the same old rut for years on end Discussions Log in to talk about this word.