20 entries under adjective topic. ×
| esoteric | |
| furtive | |
| interior | |
| mystical | |
| obscure | |
| personal | |
| recondite | |
| stealthy | |
| surreptitious | |
| underground | |
| underhand | |
| arcane | |
| inner | |
| mystic | |
| secret(noun, question) | |
| clandestine | |
| privy | |
| unknown | |
| deep | |
| cryptic |
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| APA | Smart Define. (2015). communication thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/communication/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "communication thesaurus" https://smartdefine.org/communication/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, communication thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/communication/thesaurus/antonyms>. |
| MLA | Smart Define. "communication thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/communication/thesaurus/antonyms> |