18 entries under infrequently topic. ×

10
sometimes(expression, adverb, time, moment, rare)
10
occasionally(expression, adverb, time, moment, rare)
8
from time to time(expression, adverb, time, moment, rare)
5
irregularly(adverb, vacillating, rarely, intermittently)
4
sporadically(expression, adverb, time, rare, vacillating)
3
intermittently(expression, adverb, time, rare, vacillating)
3
periodically(expression, adverb, time, rare, frequency)
3
seldom(adverb, occasionally)
1
alternately(adverb, vacillating, intermittently, sporadically)
1
not often(expression, adverb, hardly, intermittently)
0
fluctuating(adverb, vacillating, intermittently, sporadically)
0
inconstantly(adverb, intermittently, sporadically)
0
intermittent(adverb, intermittently, sporadically)
0
on-and-off(adverb, intermittently, sporadically)
0
uncertainly(adverb, intermittently, sporadically)
0
variable(adverb, intermittently, sporadically)
0
very seldom(adverb, intermittently, sporadically)
0
when the mood strikes(adverb, intermittently, sporadically)
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APASmart Define. (2013). once in a while thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/once_in_a_while/thesaurus/synonyms
ChicagoSmart Define. 2013. "once in a while thesaurus" https://smartdefine.org/once_in_a_while/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2013, once in a while thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/once_in_a_while/thesaurus/synonyms>.
MLASmart Define. "once in a while thesaurus" 18 May 2013. Web. 25 September 2026. <https://smartdefine.org/once_in_a_while/thesaurus/synonyms>