266 entries under firm topic. ×

22
obstinate(adjective, mean, hard, rough)
22
relentless(adjective, mean, hard, determined)
21
immutable(adjective, hard, secure, rough)
20
constant(adjective, strong, complete, secure, tough)
20
unwavering(adjective, strong, secure, flat)
19
adamant(adjective, mean, strong, hard, secure)
19
stable(adjective, adverb, calm, quiet, strong)
18
definite(adjective, set, clear, strong, complete)
18
enduring(adjective, strong, sound, tough, flat)
18
steady(adjective, adverb, move, strong, sound)
16
certain(noun, adjective, change, clear, complete)
16
changeless(adjective, severe, harsh, solid)
16
persistent(adjective, strong, tough, flat)
15
secure(adjective, strong, hard, sound, tough)
14
lasting(adjective, strong, tough, stable)
14
resolved(verb, adjective, set, strong, flat)
14
traditional(adjective, state, quality, common)
14
unvarying(adjective, dull, clear, solid)
13
decided(verb, adjective, set, solid)
13
regular(adjective, solid, exact, proper)
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APASmart Define. (2016). fixed thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fixed/thesaurus/synonyms
ChicagoSmart Define. 2016. "fixed thesaurus" https://smartdefine.org/fixed/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fixed thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fixed/thesaurus/synonyms>.
MLASmart Define. "fixed thesaurus" 16 March 2016. Web. 22 September 2026. <https://smartdefine.org/fixed/thesaurus/synonyms>