- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
416 entries under adjective topic. ×
| hard(tough, severe, evil, difficulty) | |
| awful(great, tough, terrible, fear) | |
| burdensome(tough, severe, difficult, heavy) | |
| daunting(tough, awful, horrible, grand) | |
| fearsome(awful, wonderful, fear, grand) | |
| menacing(bad, tough, severe, unpleasant) | |
| strenuous(tough, severe, rough, difficult) | |
| alarming(bad, awful, heavy, fear) | |
| frightening(awful, terrible, wonderful, disgusting) | |
| awe-inspiring(awful, wonderful, fear, amazing) | |
| horrific(bad, great, tough, fear) | |
| imposing(tough, awful, wonderful, horrible) | |
| rough(hard, tough, nasty, difficult) | |
| shocking(appearance, bad, great, unpleasant) | |
| terrifying(tough, awful, wonderful, grand) | |
| horrible(great, tough, unpleasant, awful) | |
| severe(appearance, great, tough, difficult) | |
| toilsome(tough, severe, difficulty, difficult) | |
| uphill(tough, severe, rough, difficult) | |
| demanding(tough, severe, rough, difficult) |
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| APA | Smart Define. (2015). formidable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/formidable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "formidable thesaurus" https://smartdefine.org/formidable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, formidable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/formidable/thesaurus/synonyms>. |
| MLA | Smart Define. "formidable thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/formidable/thesaurus/synonyms> |