147 entries under strong topic. ×
| equable(adjective, calm, secure, firm) | |
| fastened(adjective, firm, solid, true) | |
| fixed resistant(expression, calm, solid, substantial) | |
| fortified(adjective, firm, solid, true) | |
| hang tough(expression, certain, definite, resolved) | |
| high-principled(adjective, good, honest, solid) | |
| honorable(adjective, close, correct, firm) | |
| immovable(adjective, firm, solid, true) | |
| impeccable(good, solid, steady, consistent) | |
| intent(adjective, flat, certain, determined) | |
| iron(adjective, tough, firm, solid) | |
| lasting(calm, firm, solid, certain) | |
| nailed(adjective, calm, secure, firm) | |
| nailed down(expression, adjective, easy, solid) | |
| obdurate(adjective, tough, flat, firm) | |
| perdurable(calm, solid, steady, substantial) | |
| permanent(calm, firm, solid, true) | |
| persevering(adjective, set, tough, flat) | |
| proved(good, solid, important, steady) | |
| set in stone(expression, adjective, idiom, calm) |
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| APA | Smart Define. (2016). sure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, sure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>. |
| MLA | Smart Define. "sure thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms> |