148 entries under persistent topic. ×
| immutable(adjective, hard, secure, rough, firm) | |
| constant(adjective, strong, complete, secure, tough) | |
| immobile(adjective, move, calm, quiet, strong) | |
| unwavering(adjective, strong, secure, flat, firm) | |
| adamant(adjective, mean, strong, hard, secure) | |
| stable(adjective, adverb, calm, quiet, strong) | |
| enduring(adjective, strong, sound, tough, flat) | |
| invariable(adjective, severe, harsh, solid, ordinary) | |
| rooted(verb, adjective, strong, hard, secure) | |
| steady(adjective, adverb, move, strong, sound) | |
| changeless(adjective, severe, firm, harsh, solid) | |
| unalterable(adjective, strong, hard, secure, severe) | |
| lasting(adjective, strong, tough, firm, stable) | |
| resolved(verb, adjective, set, strong, flat) | |
| unvarying(adjective, dull, clear, firm, solid) | |
| decided(verb, adjective, set, firm, solid) | |
| regular(adjective, firm, solid, exact, proper) | |
| solid(adjective, set, strong, hard, sound) | |
| eternal(adjective, wild, original, basic) | |
| sure(adjective, clear, strong, flat, firm) |
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| APA | Smart Define. (2016). fixed thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fixed/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fixed thesaurus" https://smartdefine.org/fixed/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, fixed thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fixed/thesaurus/synonyms>. |
| MLA | Smart Define. "fixed thesaurus" 16 March 2016. Web. 21 September 2026. <https://smartdefine.org/fixed/thesaurus/synonyms> |