260 entries under adjective topic. ×
| metallic(metal, made) | |
| mousy(dull, lead, grim, leaden) | |
| mulish(mean, strong, hard, tough) | |
| mutinous(persistent, obstinate, insistent, dogged) | |
| nailed(strong, solid, stable, sure) | |
| narrow-minded(persistent, obstinate, insistent, dogged) | |
| obsessive(persistent, obstinate, insistent, dogged) | |
| oyster(dull, lead, grim, leaden) | |
| peppery(dull, lead, grim, leaden) | |
| perverse(mean, hard, tough, firm) | |
| pigheaded(mean, hard, tough, firm) | |
| pight | |
| powder(dull, lead, grim, leaden) | |
| racy | |
| resilient | |
| robustious | |
| rock-solid | |
| rocklike(firm, stiff, rigid, steel) | |
| safe and sound(expression, idiom, strong, solid) | |
| secure(verb, stable, safe, sheltered) |
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| APA | Smart Define. (2015). iron thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/iron/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, iron thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>. |
| MLA | Smart Define. "iron thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms> |