- Definitions|2
- Thesaurus|885
- Abbreviations|0
possible profanity
| hateful | |
| horrific(adjective, hellish) | |
| ill | |
| illegitimate | |
| improper | |
| inhumane | |
| irreligious | |
| magical(adjective, bewitching) | |
| marvelous(adjective, extraordinary, unusual, wonderful, charming) | |
| murderous | |
| not religious | |
| pernicious | |
| poisonous | |
| profane | |
| rascally | |
| roguish | |
| ruthless | |
| sacrilegious | |
| sadistic | |
| sanguinary |
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| APA | Smart Define. (2015). diabolic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/diabolic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "diabolic thesaurus" https://smartdefine.org/diabolic/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, diabolic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/diabolic/thesaurus/synonyms>. |
| MLA | Smart Define. "diabolic thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/diabolic/thesaurus/synonyms> |