月げっ経けい不ふ順じゅんMeaningsNoun1. menstrual irregularity; irregular menstruationKanji used月moon経Buddhist scripture不negative順sequenceComposed of月げっ経けいmenstruation; menstrual periodNoun不ふ順じゅんirregular; unseasonable; changeable; unsettled; abnormalNa-adjective