19 entries under rare topic. ×

17
occasionally(expression, adverb, time, moment, period)
16
sometimes(expression, adverb, time, moment, period)
15
now and then(expression, idiom, adverb, time, moment)
11
at times(expression, adverb, time, moment, period)
11
every so often(expression, idiom, adverb, time, moment)
11
off and on(expression, idiom, adverb, time, moment)
9
infrequently(expression, adverb, time, moment, period)
9
sporadically(expression, adverb, time, frequency)
8
now and again(expression, adverb, time, moment)
7
betweentimes(expression, adverb, time, moment, period)
7
every once in a while(expression, idiom, adverb, time, moment)
7
once in a while(expression, adverb, time, moment)
4
at intervals(expression, adverb, time, vacillating)
4
ever and again(expression, adverb, time, moment)
4
from time to time(expression, adverb, time, moment)
4
on and off(expression, adverb, time, moment)
4
once(expression, adverb, time, moment, period)
2
intermittently(expression, adverb, time, frequency)
2
periodically(expression, adverb, time, frequency)
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APASmart Define. (2015). on occasion thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/on_occasion/thesaurus/synonyms
ChicagoSmart Define. 2015. "on occasion thesaurus" https://smartdefine.org/on_occasion/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, on occasion thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/on_occasion/thesaurus/synonyms>.
MLASmart Define. "on occasion thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/on_occasion/thesaurus/synonyms>