constantly Antonyms

swiftly indiscriminately at times from time to time now and again now and then on occasion once in a while antagonistically anymore illogically in the meantime never again at random asymmetrically all of a sudden temporarily transitorily unequally unoften variably variously while instantaneously suddenly by chance unexpectedly against the clock no longer unusually traitorously treacherously unevenly unpatriotically unpredictably unsystematically every now and then hardly ever in some cases on the odd occasion on occasions not always pro tempore pro tem patchily unsteadily unstably adjustably at intervals at no time