56 entries under recurrent topic. ×

10
unvarying(adjective, steady, stable, regular, fixed)
9
habitual(adjective, usual, steady, stable, regular)
9
regular(verb, adjective, sound, usual, steady)
9
unfailing(adjective, continue, steady, fixed, persistent)
8
long-lived(adjective, familiar, established, returning)
5
inveterate(adjective, familiar, usual, established, hardened)
5
lifelong(adjective, familiar, established, permanent, durable)
4
monotonous(adjective, steady, stable, regular, fixed)
3
old(adjective, familiar, established, traditional, permanent)
3
persisting(adjective, determined, steady, stable, persistent)
2
connected(adjective, steady, stable, regular, fixed)
2
customary(usual, regular, normal, established, hardened)
2
thick(adjective, regular, normal, frequency)
2
ubiquitous(regular, normal)
1
common(usual, regular, normal, established, hardened)
1
familiar(regular, normal, established, long-established)
1
longstanding(permanent, long-term, lifelong, returning)
1
normal(usual, regular, established, hardened)
1
reiterative(usual, regular, normal, established, hardened)
0
commonplace(regular, normal)
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APASmart Define. (2016). perpetual thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/perpetual/thesaurus/synonyms
ChicagoSmart Define. 2016. "perpetual thesaurus" https://smartdefine.org/perpetual/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, perpetual thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/perpetual/thesaurus/synonyms>.
MLASmart Define. "perpetual thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/perpetual/thesaurus/synonyms>