167 entries under stable topic. ×
| certain(noun, adjective, change, clear, complete) | |
| changeless(adjective, severe, firm, harsh, solid) | |
| persistent(adjective, strong, tough, flat, firm) | |
| unalterable(adjective, strong, hard, secure, severe) | |
| secure(adjective, strong, hard, sound, tough) | |
| lasting(adjective, strong, tough, firm) | |
| unvarying(adjective, dull, clear, firm, solid) | |
| regular(adjective, firm, solid, exact, proper) | |
| solid(adjective, set, strong, hard, sound) | |
| motionless(adjective, calm, quiet, strong, secure) | |
| sure(adjective, clear, strong, flat, firm) | |
| tight(adjective, adverb, close, strong, hard) | |
| unmoving(adjective, move, calm, strong, secure) | |
| everlasting(adjective, persistent, constant, continuous) | |
| fastened(noun, verb, adjective, strong, sound) | |
| habitual(adjective, cold, common, ordinary, usual) | |
| set in stone(expression, adjective, idiom, mean, hard) | |
| tenacious(adjective, strong, sound, secure, tough) | |
| abiding(adjective, strong, tough, flat, firm) | |
| still(adjective, calm, quiet, secure, shy) |
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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> |