- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
66 entries under hard topic. ×
| obscure(adjective, sharp, difficult, dark) | |
| deep(adjective, sound, easy, evil) | |
| mysterious(adjective, evil, obscure, dark) | |
| puzzling(adjective, fancy, evil, obscure) | |
| difficult(adjective, obscure, strange, uncertain) | |
| intricate(adjective, fancy, evil, obscure) | |
| esoteric(adjective, sound, easy, evil) | |
| complex(adjective, fancy, difficult, heavy) | |
| perplexing(adjective, fancy, obscure, difficult) | |
| unfathomable(adjective, obscure, difficult, strange) | |
| complicated(adjective, evil, obscure, difficult) | |
| enigmatic(adjective, evil, sharp, obscure) | |
| hidden(adjective, evil, obscure, difficult) | |
| involved(adjective, fancy, obscure, difficult) | |
| abstract(adjective, obscure, difficult, complex) | |
| subtle(adjective, sharp, obscure, difficult) | |
| mystifying(adjective, evil, obscure, strange) | |
| opaque(adjective, obscure, difficult, uncertain) | |
| knotty(adjective, fancy, evil, obscure) | |
| baffling(adjective, obscure, difficult, dark) |
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| APA | Smart Define. (2015). abstruse thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, abstruse thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>. |
| MLA | Smart Define. "abstruse thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms> |