To undo the snap or snaps of, so as to loosen or detach
To lay open; reveal
To send (troops or ships, for example) on a special mission.
To release from something that holds fast, connects, or entangles.
To make less taut, less compact, etc.
To become free from prejudice, etc.; become liberal and generous
To loosen or undo the buckle or buckles of.
To come open or unfastened.
To become unhooked
To unfasten or detach in this way
To get (into or out of clothes) quickly
To relax the grasp
Find another word for unfasten. In this page you can discover 23 synonyms, antonyms, idiomatic expressions, and related words for unfasten, like: unbutton, unsnap, untie, unlock, unhitch, detach, disengage, free, loosen, open and unbuckle.