| unclear(adjective, limited, restricted, hindered) | |
| vague(adjective, limited, restricted, hindered) | |
| inaccessible(adjective, limited, restricted, hindered) | |
| surreptitious(adjective, secret, sneaky) | |
| adjourn(verb, stop, advance, complete, do) | |
| bar(verb, secure, loose, prohibit, usually) | |
| biased(adjective, dark) | |
| black | |
| bond(verb, stick, fasten) | |
| bury(verb, stop, complete) | |
| cagey | |
| clandestine(adjective, secret, sly) | |
| close up(verb, expression, phrasal verb, hold, fix) | |
| compact | |
| conceal(verb, hold, fix, disregard, reveal) | |
| confidential | |
| cover(verb, stop, complete, reveal, expose) | |
| covered | |
| crafty | |
| cunning |
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| APA | Smart Define. (2016). open thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/open/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "open thesaurus" https://smartdefine.org/open/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, open thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/open/thesaurus/antonyms>. |
| MLA | Smart Define. "open thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/open/thesaurus/antonyms> |