48 entries under fixed topic. ×

2
ageless(static, unchangeable)
2
changeless(static, unvarying, unchangeable, unalterable)
2
confirmed(adjective, persistent, constant, continuous)
2
consistent(adjective, wild, certain, even)
2
deep-rooted(adjective, persistent, hardened, lasting)
2
deep-seated(adjective, persistent, continuous, hardened)
2
even(adjective, slow, steady, regular)
2
firm(adjective, strong, wild, determined, familiar)
2
immutable(static, unvarying, unchangeable, unalterable)
2
invariable(adjective, certain, reliable, continuous)
2
resolute(adjective, strong, firm, wild, determined)
2
rigid(static, unchangeable)
2
static
2
unfading(static, unchangeable)
1
ever-present(persistent, continuous, lasting, remaining)
1
imperishable(static, unchangeable, recurrent, perpetual)
1
inborn(persistent, continuous, lasting, remaining)
1
inbred(persistent, continuous, hardened, lasting)
1
incurable(persistent, continuous, hardened, lasting)
1
ineradicable(persistent, continuous, hardened, lasting)
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APASmart Define. (2016). continuing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/continuing/thesaurus/synonyms
ChicagoSmart Define. 2016. "continuing thesaurus" https://smartdefine.org/continuing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, continuing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/continuing/thesaurus/synonyms>.
MLASmart Define. "continuing thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/continuing/thesaurus/synonyms>