- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
59 entries under heavy topic. ×
| heavy(adjective, feature, characteristic, tough, severe) | |
| onerous(adjective, tough, severe, difficulty, difficult) | |
| arduous(adjective, tough, severe, difficulty, rough) | |
| tough(adjective, strong, severe, difficulty, rough) | |
| laborious(adjective, tough, severe, difficulty, rough) | |
| difficult(adjective, hard, tough, severe, evil) | |
| hard(adjective, tough, severe, evil, difficulty) | |
| burdensome(adjective, tough, severe, difficult) | |
| alarming(adjective, bad, awful, fear) | |
| rough(adjective, hard, tough, nasty, difficult) | |
| severe(adjective, appearance, great, tough, difficult) | |
| demanding(adjective, tough, severe, rough, difficult) | |
| effortful(adjective, tough, severe, difficult) | |
| fierce(adjective, great, tough, horrible) | |
| rugged(adjective, hard, severe, evil, rough) | |
| knotty(adjective, hard, severe, rough, difficult) | |
| serious(adjective, bad, hard, difficult, unpleasant) | |
| trying(adjective, tough, severe, rough, difficult) | |
| weighty(adjective, severe, harsh, painful) | |
| complex(adjective, hard, difficult, delicate) |
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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> |