| cement | |
| copper(noun, element) | |
| cruel(adjective, strong, hard, tough, inflexible) | |
| granite(adjective, lead, hardness, leaden, mousy) | |
| handcuffs(noun, bond, metal) | |
| heart of oak(expression, idiom, strength, hardness) | |
| hearty | |
| hidebound(adjective, persistent, obstinate, stubborn, unbending) | |
| iron out(verb, expression, phrasal verb, press) | |
| ironing(noun, verb, calm, quiet, reheat) | |
| lead(noun, adjective, dull, element, grim) | |
| level(verb, move, hold, calm, quiet) | |
| lusty(adjective, strong) | |
| obstinate(adjective, set, mean, strong, hard) | |
| pig(noun, hard, metal) | |
| platinum(noun, element) | |
| potassium(noun, element) | |
| resolved(adjective, determined, resolution, resolute, persistent) | |
| roll(verb, smoothness) | |
| set(verb, adjective, strong, tough, firm) |
For more, visit
Iron on
Power Thesaurus
| APA | Smart Define. (2015). iron thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/iron/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, iron thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>. |
| MLA | Smart Define. "iron thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms> |