persistently Antonyms

not regularly erratically episodically at no time adjustably abridgedly abbreviatedly unusually by fits and starts once in a while on occasion now and then every once in a while every so often not always on occasions on no occasion very rarely on the odd occasion in some cases hardly ever every now and then on and off off and on in fits and starts now and again from time to time irregularly intermittently inconsistently desultorily cursorily briefly awhile adversely acutely accidentally abruptly lithely never at times at random transitorily temporarily sporadically sometimes shortly seldom randomly periodically