16 entries under various topic. ×

11
occasional(adjective, continue, regular, irregular, infrequent)
8
seasonal(adjective, usual, regular, irregular, standard)
2
odd(adjective, miscellaneous)
1
casual(adjective, miscellaneous, seasonal)
1
chance(adjective, miscellaneous)
1
incidental(adjective, miscellaneous)
0
accidental
0
contingent
0
different
0
fluky
0
fortuitous
0
fragmentary
0
miscellaneous
0
odd-lot
0
sundry
0
varied
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APASmart Define. (2015). periodic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/periodic/thesaurus/synonyms
ChicagoSmart Define. 2015. "periodic thesaurus" https://smartdefine.org/periodic/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, periodic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/periodic/thesaurus/synonyms>.
MLASmart Define. "periodic thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/periodic/thesaurus/synonyms>