5 entries under rarely topic. ×

9
sporadically(adverb, variable, vacillating, infrequently)
7
occasionally(adverb, vacillating, unusually, infrequently)
2
from time to time(adverb, vacillating, infrequently, intermittently)
2
not often(adverb, variable, intermittent, infrequently)
2
once in a while(adverb, vacillating, infrequently, intermittently)
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APASmart Define. (2015). irregularly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/irregularly/thesaurus/synonyms
ChicagoSmart Define. 2015. "irregularly thesaurus" https://smartdefine.org/irregularly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, irregularly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/irregularly/thesaurus/synonyms>.
MLASmart Define. "irregularly thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/irregularly/thesaurus/synonyms>