2
alternate
2
at different times
2
auxiliary
2
ceremonial
2
effortless
2
fluctuating(adjective, regular, routine, unreliable, uneven)
2
fragmentary(adjective, unreliable, uneven, variable, erratic)
2
hit-or-miss(adjective, irregular, erratic, random, haphazard)
2
inconstant(adjective, unreliable, uneven, variable, erratic)
2
indirect(adjective, circumstantial)
2
insouciant
2
insufficient(adjective, slight, short, inadequate, limited)
2
intermitting
2
isolated(adjective, infrequent)
2
ritual
2
seasonal(adjective, regular, irregular, routine, infrequent)
2
semioccasional(adjective, light, slight, thin, strange)
2
stray
2
supplementary
2
unexpected(adjective, chance, unplanned, unpremeditated)
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APASmart Define. (2015). occasional thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/occasional/thesaurus/synonyms
ChicagoSmart Define. 2015. "occasional thesaurus" https://smartdefine.org/occasional/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, occasional thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/occasional/thesaurus/synonyms>.
MLASmart Define. "occasional thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/occasional/thesaurus/synonyms>