252 entries under tough topic. ×
| highest(order, quality, superior, prime) | |
| impervious(adjective, set, hard, solid) | |
| implacable(adjective, strong, hard, harsh) | |
| in fine feather(expression, adjective, idiom, strong, sound) | |
| inexorable(adjective, strong, hard, severe) | |
| inflexible(adjective, strong, hard, severe) | |
| insensible(adjective, dull, quiet, strong, hard) | |
| involved(adjective, hard, obscure, rough) | |
| irritating(adjective, dull, severe, boring) | |
| jouster(opponent, champion, mercenary, militant) | |
| leading(order, important, outstanding, prime) | |
| major(adjective, great, severe, important) | |
| mercenary(opponent, champion, militant, bodyguard) | |
| merciless(adjective, severe, rough, difficult) | |
| militant(opponent, champion, mercenary, bodyguard) | |
| murder(adjective, hard, severe, rough) | |
| no picnic(expression, severe, rough, difficult) | |
| not easy(expression, idiom, severe, painful) | |
| number one(order, quality, superior, best) | |
| oafish(awkward, inept, problematic, bulky) |
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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> |