89 entries under strong topic. ×
| stuffed(full, rich, busy, reduced) | |
| unbending(adjective, hard, tough, firm) | |
| unrelenting(adjective, hard, tough, sturdy) | |
| unshakable(adjective, hard, substantial, compact) | |
| unsparing(adjective, hard, tough, sturdy) | |
| adamant(adjective, hard, tough, sturdy) | |
| astringent(adjective, hard, tough, sturdy) | |
| austere(adjective, hard, tough, sturdy) | |
| authoritarian(adjective, hard, tough, sturdy) | |
| bitter(adjective, hard, tough, sturdy) | |
| bullheaded(adjective, hard, tough, sturdy) | |
| by the book(expression, adjective, idiom, hard) | |
| determined(adjective, hard, tough) | |
| dimensional(adjective, hard, substantial, compact) | |
| disciplinary(adjective, hard, tough, sturdy) | |
| dyed-in-the-wool(adjective, hard, tough, sturdy) | |
| ferric(adjective, hard, tough, sturdy) | |
| ferrous(adjective, hard, tough, sturdy) | |
| flinty(adjective, hard, tough, sturdy) | |
| forbidding(adjective, hard, tough, sturdy) |
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| APA | Smart Define. (2016). thick thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thick/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "thick thesaurus" https://smartdefine.org/thick/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, thick thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thick/thesaurus/synonyms>. |
| MLA | Smart Define. "thick thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/thick/thesaurus/synonyms> |