| lock(noun, verb, open, fasten, clasp) | |
| bind(verb, separate, remove, forget, uncover) | |
| bar(noun, open, loose) | |
| close(adjective, open, loose, unblock) | |
| fasten(verb, hold, separate, release, secure) | |
| hold | |
| hook(noun, verb, catch, grab, detach) | |
| secure(verb, disregard, fail, loosen, unfix) | |
| bolt(noun, verb, fasten) | |
| clamp(verb, fasten, loosen) | |
| clinch(verb, open) | |
| confine | |
| constrain | |
| fetter | |
| fix(verb, hold) | |
| hitch(verb, join, loose, fasten, undo) | |
| join(verb, part, open, loose) | |
| restrain(verb, hold) | |
| tighten | |
| accurate |
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| APA | Smart Define. (2016). unlock thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unlock/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "unlock thesaurus" https://smartdefine.org/unlock/thesaurus/antonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, unlock thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unlock/thesaurus/antonyms>. |
| MLA | Smart Define. "unlock thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/unlock/thesaurus/antonyms> |