- Definitions|1
- Thesaurus|406
- Abbreviations|0
152 entries under adjective topic. ×
| alarming | |
| disgusting | |
| hair-raising(nasty, awful, terrible, unreasonable) | |
| heinous | |
| lurid | |
| nauseating | |
| repugnant | |
| repulsive | |
| revolting | |
| foul | |
| ghoulish(nasty, awful, terrible, unreasonable) | |
| scary(nasty, awful, terrible, unreasonable) | |
| spooky | |
| abhorrent | |
| abominable | |
| acute | |
| bad | |
| cruel | |
| deplorable | |
| distasteful |
For more, visit
Nightmarish on
Power Thesaurus
| APA | Smart Define. (2013). nightmarish thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/nightmarish/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "nightmarish thesaurus" https://smartdefine.org/nightmarish/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2013, nightmarish thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/nightmarish/thesaurus/synonyms>. |
| MLA | Smart Define. "nightmarish thesaurus" 28 June 2013. Web. 29 September 2026. <https://smartdefine.org/nightmarish/thesaurus/synonyms> |