70 entries under adjective topic. ×
| unknown(obscure, mysterious) | |
| unidentified | |
| foreign(regular, irrelevant) | |
| obscure | |
| uncharted | |
| undiscovered | |
| secret(noun, clandestine, underhand, unrevealed) | |
| anonymous(choice, unknown) | |
| faceless | |
| mysterious(secret, concealed) | |
| nameless(unknown, anonymous) | |
| unfamiliar(strange, common, different, unknown) | |
| unspecified | |
| incognito | |
| inside(secret, outside) | |
| occult(clear, secret, supernatural) | |
| privy(open, secret) | |
| suspect(doubtful, trustworthy) | |
| trial(definite, experimental) | |
| ulterior(secret, public, pertaining) |
For more, visit
Known on
Power Thesaurus
| APA | Smart Define. (2015). known thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/known/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "known thesaurus" https://smartdefine.org/known/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, known thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/known/thesaurus/antonyms>. |
| MLA | Smart Define. "known thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/known/thesaurus/antonyms> |