Definition for On and off:

• not regularly; " they phone each other off and on"

Synonyms for On and off:

• adv.

  •seldom (adverb)
  • once in a while.

• adv

  •seldom (adverb)
  • once in a blue moon,
  • once in blue moon,
  • inhabitually,
  • Unoften,
  • whimsically,
  • not often,
  • not very often,
  • scarcely ever,
  • a few times,
  • hardly ever,
  • Semioccasionally,
  • in a few cases.

• Other synonyms:

  •rarely
  • seldom.

Antonyms for On and off:

• adj.

  • Other antonyms:
    eternal, perpetual, incessant, continuous, unceasing, interminable, everlasting, constant.