Synonyms|406Antonyms|94|Broader|3Narrower|0Related|581

99 entries under fixed topic. ×

7
rigid(adjective, set, severe, firm, still)
7
unchanged(adjective, uniform, static, unvarying)
6
durable(adjective, set, firm, solid, stable)
6
set(adjective, severe, firm, harsh, solid)
6
unfailing(adjective, change, set, clear, firm)
5
fast(adjective, firm, solid, stable)
5
solid(adjective, severe, firm, harsh, stable)
4
consistent(adjective, change, set, smooth, right)
4
immovable(adjective, set, firm, solid, still)
4
inevitable(adjective, certain, unquestionable, permanent)
4
inflexible(adjective, set, certain, limited, definite)
4
irrevocable(adjective, certain, unquestionable, permanent)
4
resolute(adjective, firm, solid, stable)
4
sure(adjective, clear, firm, solid, certain)
3
equable(adjective, smooth, right, firm, solid)
3
even(adjective, smooth, right, firm, solid)
3
immobile(adjective, intense, still, resolute)
3
settled(adjective, firm, solid, certain, stable)
3
unfaltering(adjective, clear, firm, solid, certain)
3
unwavering(adjective, clear, firm, solid, certain)
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HarvardSmart Define 2015, changeless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/changeless/thesaurus/synonyms>.
MLASmart Define. "changeless thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/changeless/thesaurus/synonyms>