32 entries under adverb topic. ×

1
not often(expression, hardly, infrequently, intermittently)
1
rarely
0
fluctuating(vacillating, infrequently, intermittently, sporadically)
0
inconstantly(infrequently, intermittently, sporadically)
0
intermittent(infrequently, intermittently, sporadically)
0
on-and-off(infrequently, intermittently, sporadically)
0
once in a blue moon
0
once in awhile
0
uncertainly(infrequently, intermittently, sporadically)
0
variable(infrequently, intermittently, sporadically)
0
very seldom(infrequently, intermittently, sporadically)
0
when the mood strikes(infrequently, intermittently, sporadically)
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APASmart Define. (2013). once in a while thesaurus. Retrieved September 26, 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 26, 2026).
HarvardSmart Define 2013, once in a while thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/once_in_a_while/thesaurus/synonyms>.
MLASmart Define. "once in a while thesaurus" 18 May 2013. Web. 26 September 2026. <https://smartdefine.org/once_in_a_while/thesaurus/synonyms>