- unfasten
- vdetach, free, separate, undo, open, loose, disjoint; set free, part, sever, cut, let go; unlace, untie, unlash, untether, unloose; unhitch, unbutton, unhasp, unfix, unlock, unlatch, unhook, unlink, unzipper; loosen, release, unharness, unshackle, unfetter, unchain, unpinion, unhandcuff; unbar, unpin, unbolt, unbuckle; disengage, cut off, cut adrift, cast off, unmoor.
A Note on the Style of the synonym finder. 2014.