- Definitions|2
- Thesaurus|2.3k
- Abbreviations|0
72 entries under dreadful topic. ×
| wicked(adjective, mean, bad, severe, rough) | |
| dangerous(adjective, hard, severe, evil, rough) | |
| evil(adjective, mean, bad, hard, rough) | |
| difficult(adjective, hard, severe, evil, rough) | |
| menacing(adjective, bad, nasty, unpleasant, heavy) | |
| sinister(adjective, rough, nasty, dark, unpleasant) | |
| dirty(adjective, hard, rough, nasty, rude) | |
| mean(adjective, bad, smooth, smart, nasty) | |
| base(adjective, mean, bad, unpleasant, horrible) | |
| malevolent(adjective, mean, bad, evil, unpleasant) | |
| ominous(adjective, unpleasant, horrible, disagreeable) | |
| threatening(adjective, delicate, unpleasant, uncertain, horrible) | |
| unsound(adjective, severe, delicate, false, awful) | |
| nasty(adjective, bad, hard, rough, dark) | |
| vicious(adjective, hard, evil, rough, nasty) | |
| vile(adjective, hard, evil, rough, nasty) | |
| despicable(adjective, hard, evil, rough, nasty) | |
| troublesome(adjective, hard, severe, evil, rough) | |
| ugly(adjective, bad, hard, severe, evil) | |
| filthy(adjective, unpleasant, horrible, disagreeable) |
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| APA | Smart Define. (2016). treacherous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/treacherous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "treacherous thesaurus" https://smartdefine.org/treacherous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, treacherous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/treacherous/thesaurus/synonyms>. |
| MLA | Smart Define. "treacherous thesaurus" 4 March 2016. Web. 28 September 2026. <https://smartdefine.org/treacherous/thesaurus/synonyms> |