around the clock Antonyms

for once in a while continuously developing continuously changing continually evolving continually developing constantly evolving constantly developing constantly changing changing all the time at this time at the present moment at the greek calends always evolving always changing in constant change every now and then continuously evolving evolving all the time in continuous evolution one single time when pigs begin to fly tomorrow come never not every time from case to case inhabitually not regularly not always every now and again ever so often at one time or another in a few cases in some cases permanently changing in permanent evolution shortlived once in a way sporadic presently once occasionally occasional now irregularly irregular interruptedly intermittent infrequent inconstant episodical episodic