50 entries under adjective topic. ×

11
isochronal(regular, irregular, routine, joint)
7
periodic(regular, irregular, repetition, erratic)
7
recurrent(regular, irregular, routine, repetition)
5
concomitant(accompanying, contributing, synchronism)
5
concurrent
5
intermittent(regular, irregular, routine, erratic)
5
periodical(noun, regular, irregular, routine)
4
cyclic(regular, irregular, routine, repetition)
4
simultaneous
3
accompanying
3
alternate
3
coincident
3
regular
2
chain(recurrent, wornout, isochronal, summative)
2
cyclical(repetition, recurrent)
2
epochal(regular, irregular, routine, erratic)
2
frequent
2
like clockwork(expression, idiom, regular, repetition)
2
repetitive
2
seasonal(regular, irregular, routine, erratic)
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APASmart Define. (2015). isochronous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/isochronous/thesaurus/synonyms
ChicagoSmart Define. 2015. "isochronous thesaurus" https://smartdefine.org/isochronous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, isochronous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/isochronous/thesaurus/synonyms>.
MLASmart Define. "isochronous thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/isochronous/thesaurus/synonyms>