43 entries under adjective topic. ×

10
isochronous(regular, irregular, routine, joint)
7
periodic(regular, irregular, repetition, erratic)
7
periodical(noun, regular, irregular, routine)
7
recurrent(regular, irregular, routine, repetition)
6
cyclic(regular, irregular, routine, repetition)
5
intermittent(regular, irregular, routine, erratic)
4
concomitant(accompanying, contributing)
4
cyclical(repetition, recurrent)
3
alternate
3
concurrent
3
contemporaneous
3
epochal(regular, irregular, routine, erratic)
2
chain(recurrent, wornout, summative)
2
every other(expression, irregular, erratic, infrequent)
2
like clockwork(expression, idiom, regular, repetition)
2
regular
2
seasonal(regular, irregular, routine, erratic)
2
simultaneous
1
at various times(expression, idiom, regular, routine)
1
by bits and pieces(expression, idiom, irregular, erratic)
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APASmart Define. (2015). isochronal thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/isochronal/thesaurus/synonyms
ChicagoSmart Define. 2015. "isochronal thesaurus" https://smartdefine.org/isochronal/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, isochronal thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/isochronal/thesaurus/synonyms>.
MLASmart Define. "isochronal thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/isochronal/thesaurus/synonyms>