30 entries under expression topic. ×

17
occasionally(adverb, time, continue, rare)
15
sporadically(adverb, time, continue, rare)
10
now and then(idiom, adverb, time, rare)
8
intermittently(adverb, time, continue, late)
7
sometimes(adverb, time, continue, rare)
6
now and again(idiom, adverb, time, continue)
5
from time to time(adverb, time, rare, now)
4
off and on(adverb, time, rare, frequency)
4
once in a while(adverb, time, rare, frequency)
4
periodic(adjective, time, rare, frequency)
2
at intervals(time, rare, frequency)
2
at regular intervals(idiom, adverb, regularity of recurrence periodicity)
2
at times(idiom, adverb)
2
day by day(idiom, regularity of recurrence periodicity)
2
ever and again(idiom, adverb, time, continue)
2
every so often(adverb, time, rare, frequency)
2
on and off(adverb, time, rare, frequency)
2
on occasion(adverb, time, rare, frequency)
2
sometime(adverb, time, rare, frequency)
1
once in awhile(adjective, idiom, adverb)
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APASmart Define. (2015). periodically thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/periodically/thesaurus/synonyms
ChicagoSmart Define. 2015. "periodically thesaurus" https://smartdefine.org/periodically/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, periodically thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/periodically/thesaurus/synonyms>.
MLASmart Define. "periodically thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/periodically/thesaurus/synonyms>