101 entries under fixed topic. ×

1
calm(adjective, quiet, strong, cool, secure)
1
certain(adjective, set, clear, complete, firm)
1
cool(noun, adjective, calm, quiet, strength)
1
determinate(adjective, certain, limited, definite)
1
equable(adjective, calm, strong, secure, firm)
1
even(adjective, calm, strong, secure, firm)
1
ever-present(persistent, lasting, remaining, chronic)
1
habitual(adjective, persistent, constant, continuous)
1
immovable(adjective, firm, solid, determined, steady)
1
imperturbable(adjective, calm, quiet, cool, gentle)
1
inborn(persistent, lasting, remaining, chronic)
1
inbred(persistent, hardened, lasting, confirmed)
1
incurable(persistent, hardened, lasting, confirmed)
1
ineradicable(persistent, hardened, lasting, confirmed)
1
inflexible(adjective, strong, flat, firm, certain)
1
ingrained(adjective, persistent, hardened, lasting)
1
liege(adjective, firm, solid, true, fast)
1
planned(adjective, certain, limited, definite)
1
poised(adjective, calm, strong, secure, firm)
1
prearranged(adjective, certain, limited, definite)
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APASmart Define. (2016). enduring thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms
ChicagoSmart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, enduring thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>.
MLASmart Define. "enduring thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms>