9 entries under episodic topic. ×

5
every once in a while(expression, adjective, idiom, time, regular)
3
every so often(expression, adjective, idiom, time, regular)
3
hourly(adjective, regular, intermittent, isochronal, seasonal)
3
monthly(adjective, regular, intermittent, isochronal, seasonal)
3
weekly(adjective, regular, intermittent, isochronal, seasonal)
1
at various times(expression, adjective, idiom, regular, intermittent)
1
centennial(adjective, regular, intermittent, isochronal, seasonal)
1
on certain occasions(expression, adjective, idiom, regular, intermittent)
1
orbital(adjective, regular, intermittent, isochronal, seasonal)
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APASmart Define. (2015). periodic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/periodic/thesaurus/synonyms
ChicagoSmart Define. 2015. "periodic thesaurus" https://smartdefine.org/periodic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, periodic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/periodic/thesaurus/synonyms>.
MLASmart Define. "periodic thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/periodic/thesaurus/synonyms>