473 entries under adjective topic. ×
| unshakable(strong, hard, continue, solid) | |
| airtight(verb, closed) | |
| attached(close, firm, true, fixed) | |
| blind(cover, protect, conceal, shield) | |
| buoyant(happy, relaxed, cheerful, hope) | |
| composed(calm, quiet, light, smooth) | |
| durable(calm, strong, sound, tough) | |
| easeful(calm, quiet, light, smooth) | |
| effective(reliable, dependable) | |
| enduring(calm, strong, sound, tough) | |
| ensured(set, solid, certain, sure) | |
| equable(calm, strong, firm, solid) | |
| fearless(certain, sure, confident, self-assured) | |
| harmless(clear, pure, healthy, safe) | |
| insured(set, solid, certain, sure) | |
| invincible | |
| nailed down(expression, easy, solid, certain) | |
| on ice(expression, easy, firm, solid) | |
| potent(strong, sound, tough, firm) | |
| quiet(calm, light, smooth, simple) |
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| APA | Smart Define. (2015). secure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/secure/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "secure thesaurus" https://smartdefine.org/secure/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, secure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/secure/thesaurus/synonyms>. |
| MLA | Smart Define. "secure thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/secure/thesaurus/synonyms> |