151 entries under stable topic. ×

17
definite(adjective, good, clear, strong, complete)
15
unchanging(adjective, close, correct, moderate, severe)
14
devoted(adjective, good, close, strong, correct)
14
iron(noun, adjective, mean, strong, hard)
14
positive(adjective, good, clear, strong, complete)
14
unchangeable(adjective, calm, strong, secure, moderate)
13
rooted(adjective, strong, hard, secure, property)
12
dependable(adjective, good, close, strong, tough)
12
taut(adjective, strong, hard, secure, rough)
11
abiding(adjective, calm, strong, complete, secure)
11
decisive(adjective, good, set, clear, strong)
10
changeless(adjective, solid, certain, limited)
10
immobile(adjective, calm, quiet, strong, secure)
10
immutable(adjective, calm, strong, hard, secure)
10
set in stone(expression, adjective, idiom, calm, set)
10
single-minded(adjective, tough, solid, intense, deliberate)
10
unvarying(adjective, calm, strong, secure, solid)
9
unqualified(adjective, complete, total, solid, certain)
9
unshaken(adjective, set, clear, solid, cold)
8
anchored(adjective, calm, strong, secure, solid)
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APASmart Define. (2016). firm thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/firm/thesaurus/synonyms
ChicagoSmart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, firm thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>.
MLASmart Define. "firm thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms>