23 entries under noun topic. ×
| depression(benefit, cheer, cavity, concavity) | |
| cavity | |
| basin | |
| concavity | |
| dimple | |
| hole | |
| recess | |
| dip | |
| impression | |
| ingrowth | |
| sinkage(depression, mountain, fullness) | |
| trench | |
| trough | |
| blues(benefit, cheer, comfort) | |
| deflation(calm, happiness) | |
| dejection | |
| desolation | |
| despair | |
| despondency | |
| slump |
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| APA | Smart Define. (2015). protuberance thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/protuberance/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "protuberance thesaurus" https://smartdefine.org/protuberance/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, protuberance thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/protuberance/thesaurus/antonyms>. |
| MLA | Smart Define. "protuberance thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/protuberance/thesaurus/antonyms> |