16 entries under rare topic. ×

17
occasionally(expression, adverb, time, continue)
15
sporadically(expression, adverb, time, continue)
10
now and then(expression, idiom, adverb, time)
8
intermittently(expression, adverb, time, continue, late)
7
sometimes(expression, adverb, time, continue)
6
now and again(expression, idiom, adverb, time, continue)
5
from time to time(expression, adverb, time, now)
4
off and on(expression, adverb, time, frequency)
4
once in a while(expression, adverb, time, frequency)
4
periodic(expression, adjective, time, frequency)
2
at intervals(expression, time, frequency)
2
ever and again(expression, idiom, adverb, time, continue)
2
every so often(expression, adverb, time, frequency)
2
on and off(expression, adverb, time, frequency)
2
on occasion(expression, adverb, time, frequency)
2
sometime(expression, adverb, time, frequency)
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APASmart Define. (2015). periodically thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/periodically/thesaurus/synonyms
ChicagoSmart Define. 2015. "periodically thesaurus" https://smartdefine.org/periodically/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, periodically thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/periodically/thesaurus/synonyms>.
MLASmart Define. "periodically thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/periodically/thesaurus/synonyms>