14 entries under irregular topic. ×

8
periodic(adjective, regular, erratic, infrequent)
6
recurrent(adjective, regular, routine, erratic)
4
intermittent(adjective, regular, routine, erratic)
4
periodical(noun, adjective, regular, routine)
3
isochronal(adjective, regular, routine, erratic)
3
seasonal(adjective, regular, routine, erratic)
2
cyclic(adjective, regular, routine, erratic)
2
every other(expression, adjective, erratic, infrequent)
2
isochronous(adjective, regular, routine, erratic)
1
by bits and pieces(expression, adjective, idiom, erratic)
1
here and there(expression, adjective, idiom, erratic)
1
iterant(adjective, erratic, infrequent, recurrent)
1
stop-and-go(adjective, erratic, infrequent, recurrent)
0
now then(expression, adjective, infrequent, intermittent)
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APASmart Define. (2016). epochal thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/epochal/thesaurus/synonyms
ChicagoSmart Define. 2016. "epochal thesaurus" https://smartdefine.org/epochal/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, epochal thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/epochal/thesaurus/synonyms>.
MLASmart Define. "epochal thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/epochal/thesaurus/synonyms>