- Definitions|2
- Thesaurus|1k
- Abbreviations|0
34 entries under adjective topic. ×
| incomprehensible | |
| opaque | |
| obscure | |
| inexplicable | |
| unpardonable | |
| unintelligible | |
| mysterious | |
| unfathomable | |
| ambiguous(clear, obscure, plain) | |
| illegible | |
| impenetrable | |
| inarticulate | |
| incoherent | |
| indecipherable | |
| indefensible | |
| inexcusable | |
| intricate(clear, simple, elaborate, complicated) | |
| unclear | |
| unreasonable | |
| illogic |
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| APA | Smart Define. (2016). understandable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/understandable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "understandable thesaurus" https://smartdefine.org/understandable/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, understandable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/understandable/thesaurus/antonyms>. |
| MLA | Smart Define. "understandable thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/understandable/thesaurus/antonyms> |