Synonyms of on and off in English:

on and off


See definition of on and off

phrase

1‘she had been working on that painting, on and off, for a long time’

SYNONYMS
periodically, at intervals, off and on, once in a while, every once in a while, every so often, now and again, now and then, every now and again, every now and then, from time to time, occasionally, on occasion, on occasions, on the odd occasion, at times, sometimes, sporadically, spasmodically, erratically, irregularly, intermittently, by fits and starts, in fits and starts, fitfully, discontinuously, piecemeal
interruptedly
ANTONYMS

regularly