- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
157 entries under adjective topic. ×
| nubilous(uncertain, equivocal, incomprehensible) | |
| over head | |
| pedantical | |
| privy | |
| purblind(obscure, difficult, uncertain, unclear) | |
| rococo(difficult, complex, sophisticated, involved) | |
| satanic(evil, mysterious, threatening, nefarious) | |
| scowling(evil, mysterious, threatening, nefarious) | |
| sinful(evil, mysterious, threatening, nefarious) | |
| sulky(evil, mysterious, threatening, nefarious) | |
| sullen(evil, mysterious, threatening, nefarious) | |
| threatening(evil, mysterious, nefarious, spooky) | |
| uncertain(obscure, difficult, vague, unclear) | |
| unimaginable | |
| upset(evil, mysterious, threatening, nefarious) | |
| vile(evil, mysterious, threatening, nefarious) | |
| Greek to me |
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| APA | Smart Define. (2015). abstruse thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, abstruse thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>. |
| MLA | Smart Define. "abstruse thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms> |