on and off Synonyms

off and on alternating at intervals discontinuously ever and anon every once in a while every so often spasmodically every now and then in some cases on the odd occasion not often in a few cases few times not very often on occasions by fits and starts on occasion now and then inconstantly infrequently intermittently interruptedly irregularly occasionally periodically seldom serial sometimes sporadically at random at times from time to time now and again every now and again