252 entries under tough topic. ×
| concrete(adjective, set, hard, solid) | |
| crackerjack(quality, superior, best, principal) | |
| durable(adjective, strong, sound, solid) | |
| enduring(adjective, strong, great, sound) | |
| fab(quality, superior, unusual, exceptional) | |
| forcible(adjective, strong, sound, solid) | |
| hardy(adjective, person, body, strong, sound) | |
| hearty(adjective, person, body, strong, sound) | |
| heavy-duty(adjective, strong, sound, solid) | |
| intricate(adjective, severe, difficult, awkward) | |
| iron(adjective, strong, hard, inflexible) | |
| jelled(adjective, set, hard, solid) | |
| knotty(adjective, hard, severe, rough) | |
| main(quality, superior, significant, prime) | |
| nonporous(hard, solid, rigid, inflexible) | |
| potent(adjective, strong, sound, severe) | |
| rigorous(adjective, strong, hard, severe) | |
| robust(adjective, person, body, strong, hard) | |
| rude(adjective, grim, vulgarity, demanding) | |
| set(adjective, strong, hard, solid) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 29 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |