- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
70 entries under obnoxious topic. ×
| terrible(adjective, appearance, bad, great, nasty) | |
| dreadful(adjective, great, unpleasant, awful, terrible) | |
| menacing(adjective, bad, tough, severe, unpleasant) | |
| rough(adjective, hard, tough, nasty, difficult) | |
| shocking(adjective, appearance, bad, great, unpleasant) | |
| horrible(adjective, great, tough, unpleasant, awful) | |
| dangerous(adjective, hard, tough, severe, evil) | |
| serious(adjective, bad, hard, difficult, unpleasant) | |
| threatening(adjective, tough, severe, unpleasant, important) | |
| troublesome(adjective, hard, tough, severe, evil) | |
| fell(adjective, tough, severe, unpleasant, important) | |
| forbidding(adjective, appearance, tough, unpleasant, terrible) | |
| ugly(adjective, bad, hard, tough, severe) | |
| grave(adjective, tough, severe, difficult, unpleasant) | |
| mean(adjective, bad, severe, rough, nasty) | |
| wicked(adjective, bad, nasty, delicate, unpleasant) | |
| cantankerous(adjective, hard, evil, rough, nasty) | |
| grievous(adjective, tough, severe, difficult, unpleasant) | |
| nasty(adjective, bad, hard, rough, difficult) | |
| treacherous(adjective, bad, hard, evil, rough) |
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| APA | Smart Define. (2015). formidable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/formidable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "formidable thesaurus" https://smartdefine.org/formidable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, formidable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/formidable/thesaurus/synonyms>. |
| MLA | Smart Define. "formidable thesaurus" 17 July 2015. Web. 21 September 2026. <https://smartdefine.org/formidable/thesaurus/synonyms> |