167 entries under stable topic. ×
| standardized(adjective, dull, cold, ordinary, usual) | |
| substantial(adjective, strong, hard, sound, tough) | |
| taut(adjective, strong, hard, secure, rough) | |
| together(adjective, exact, careful, steady) | |
| tranquil(adjective, calm, quiet, smooth, shy) | |
| unfading(constant, enduring, lasting, static) | |
| unflappable(adjective, dull, firm, solid, certain) | |
| unfluctuating(adjective, dull, strong, secure, firm) | |
| unshaken(adjective, clear, strong, flat, firm) | |
| ardent(adjective, firm, solid, true) | |
| bolted(strong, secure, fast, short) | |
| brick-wall(adjective, firm, solid, steady) | |
| buttoned down(expression, adjective, strong, solid) | |
| equable(adjective, dull, firm, solid, steady) | |
| even(adjective, dull, firm, solid, ordinary) | |
| fortified(adjective, strong, firm, solid, true) | |
| halcyon(adjective, calm, quiet, smooth, mild) | |
| homogeneous(adjective, dull, steady, regular) | |
| hushed(adjective, calm, quiet, smooth, mild) | |
| in for the long haul(expression, idiom, constant, lasting) |
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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> |