280 entries under tough topic. ×
| threatening(severe, difficult, offensive, weighty) | |
| uncontrite(adjective, harsh, cruel, grim) | |
| worrying(adjective, severe, important, significant) | |
| anesthetized(adjective, severe, cruel, unfeeling) | |
| awkward(adjective, rough, difficult, delicate) | |
| bearish(adjective, harsh, rude, cruel) | |
| boisterous(adjective, severe, rough, difficult) | |
| drastic(adjective, severe, rough, harsh) | |
| frowning(adjective, strong, severe, harsh) | |
| horrible(adjective, difficult, terrible, forbidding) | |
| impermeable(adjective, set, firm, solid) | |
| levelheaded(sound, reasonable, sensible, practical) | |
| nonporous(solid, rigid, inflexible) | |
| overwhelming(great, difficult, intense, daunting) | |
| rational(adjective, sound, reasonable, sensible) | |
| senseless(adjective, severe, cruel, unsympathetic) | |
| sensible(adjective, sound, reasonable, sharp) | |
| shameless(adjective, evil, rough, nasty) | |
| surly(adjective, mean, severe, harsh) | |
| testing(adjective, severe, difficult, violent) |
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| APA | Smart Define. (2016). hard thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, hard thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>. |
| MLA | Smart Define. "hard thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms> |