13 entries under erratic topic. ×

10
isochronous(adjective, regular, irregular, routine, joint)
7
periodic(adjective, regular, irregular, repetition)
7
periodical(noun, adjective, regular, irregular, routine)
7
recurrent(adjective, regular, irregular, routine, repetition)
6
cyclic(adjective, regular, irregular, routine, repetition)
5
intermittent(adjective, regular, irregular, routine)
3
epochal(adjective, regular, irregular, routine)
2
every other(expression, adjective, irregular, infrequent)
2
seasonal(adjective, regular, irregular, routine)
1
by bits and pieces(expression, adjective, idiom, irregular)
1
here and there(expression, adjective, idiom, irregular)
1
iterant(adjective, irregular, infrequent, recurrent)
1
stop-and-go(adjective, irregular, infrequent, recurrent)
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APASmart Define. (2015). isochronal thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/isochronal/thesaurus/synonyms
ChicagoSmart Define. 2015. "isochronal thesaurus" https://smartdefine.org/isochronal/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, isochronal thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/isochronal/thesaurus/synonyms>.
MLASmart Define. "isochronal thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/isochronal/thesaurus/synonyms>