一いっ定てい不ふ変へんMeaningsNoun1. invariable; permanentKanji used一one定define不negative変changeComposed of一いっ定ていto fix; to settle; to standardize; to regularize; constant; definite; uniform; defined; certain; prescribedSuru verb不ふ変へんeternal; everlasting; unchangeable; immutable; immovable; constant; permanent; indestructible; invariantNa-adjective