- Definitions|2
- Thesaurus|103
- Abbreviations|0
64 entries under adjective topic. ×
| ferric(strong, hard, tough, sturdy) | |
| iron(noun, strong, hard, tough) | |
| steel(strong, hard, tough, sturdy) | |
| ferruginous | |
| steely(strong, hard, tough, sturdy) | |
| dense(strong, hard, tough, sturdy) | |
| metal | |
| metallic element | |
| adamant(strong, hard, tough, sturdy) | |
| adamantine(strong, hard, tough, sturdy) | |
| astringent(strong, hard, tough, sturdy) | |
| austere(strong, hard, tough, sturdy) | |
| authoritarian(strong, hard, tough, sturdy) | |
| bitter(strong, hard, tough, sturdy) | |
| bullheaded(strong, hard, tough, sturdy) | |
| by the book(expression, idiom, strong, hard) | |
| determined(strong, hard, tough) | |
| disciplinary(strong, hard, tough, sturdy) | |
| dyed-in-the-wool(strong, hard, tough, sturdy) | |
| firm(strong, hard, tough, sturdy) |
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| APA | Smart Define. (2015). ferrous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ferrous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ferrous thesaurus" https://smartdefine.org/ferrous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, ferrous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ferrous/thesaurus/synonyms>. |
| MLA | Smart Define. "ferrous thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/ferrous/thesaurus/synonyms> |