119 entries under solid topic. ×

12
definite(adjective, strong, easy, flat, firm)
11
determined(verb, adjective, set, strong, easy)
11
resolute(adjective, set, strong, easy, flat)
6
immovable(adjective, strong, secure, firm)
6
located(verb, set, secure, firm)
6
regular(adjective, firm, determined, usual)
6
sure(adjective, strong, easy, flat, firm)
5
balanced(verb, adjective, strong, easy, firm)
5
composed(verb, adjective, relaxed, certain)
5
sealed(adjective, certain, near, sure)
5
secure(adjective, set, strong, firm)
4
assured(adjective, strong, easy, certain)
4
calm(adjective, firm, sensible, house)
4
in the bag(expression, adjective, idiom, strong, easy)
4
riveted(verb, adjective, set, strong, secure)
4
situated(set, secure, firm, fixed)
4
staunch(adjective, strong, flat, firm, sensible)
4
unchangeable(adjective, strong, flat, firm)
4
unchanging(adjective, strong, firm, determined)
4
unflappable(adjective, firm, certain, determined)
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APASmart Define. (2016). settled thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/settled/thesaurus/synonyms
ChicagoSmart Define. 2016. "settled thesaurus" https://smartdefine.org/settled/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, settled thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/settled/thesaurus/synonyms>.
MLASmart Define. "settled thesaurus" 27 March 2016. Web. 20 September 2026. <https://smartdefine.org/settled/thesaurus/synonyms>