| unfasten(verb, separate, release, loose, detach) | |
| separate by cutting(fix, attachment) | |
| loosen(verb, hold, increase, separate, release) | |
| tear off(verb, fix, stick, connect, attach) | |
| disconnect(verb, separate, release, loose, loosen) | |
| release(noun, verb, hold, separate, keep) | |
| undo(verb, open) | |
| detach(verb, separate, release, join, loose) | |
| disjoin(verb, separate, release, loose, loosen) | |
| open(verb, adjective, hold, fix, separate) | |
| sunder(verb, agree) | |
| unbind(verb, hold) | |
| unlink(verb, separate, release, loose, loosen) | |
| untie(verb, separate, release, loose, loosen) | |
| disengage(verb, join, connection) | |
| dissociate | |
| break(verb, destroy, agree, continue, face) | |
| break up(verb, expression, phrasal verb) | |
| demolish(verb, help, raise) | |
| disjoint |
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Fasten on
Power Thesaurus
| APA | Smart Define. (2016). fasten thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fasten/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "fasten thesaurus" https://smartdefine.org/fasten/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, fasten thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fasten/thesaurus/antonyms>. |
| MLA | Smart Define. "fasten thesaurus" 3 March 2016. Web. 24 September 2026. <https://smartdefine.org/fasten/thesaurus/antonyms> |