- Definitions|2
- Thesaurus|885
- Abbreviations|0
67 entries under adverb topic. ×
| fiercely | |
| foully | |
| frightfully | |
| gravely | |
| grievously | |
| grossly | |
| gruesomely | |
| hardly | |
| harshly | |
| heartbreakingly | |
| heavily | |
| hideously | |
| horrendously | |
| horribly | |
| horridly | |
| horrifically | |
| horrifyingly | |
| infernally | |
| luridly | |
| meanly |
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Frightening on
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| APA | Smart Define. (2016). frightening thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/frightening/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "frightening thesaurus" https://smartdefine.org/frightening/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, frightening thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/frightening/thesaurus/synonyms>. |
| MLA | Smart Define. "frightening thesaurus" 23 March 2016. Web. 28 September 2026. <https://smartdefine.org/frightening/thesaurus/synonyms> |