unfasten

Verb

Verb Forms: unfastened, unfastening, unfastens

• To release from fastenings; to unlatch or unbind.
• cause to become undone
  • "unfasten your belt"
• become undone or untied
  • "The shoelaces unfastened"
• To detach from any connecting agency or link; to disconnect.
• To come unloosed or untied.

Examples

• He tried to UNFASTEN the grip of his losing streak with a bold play of "QUIXOTIC."

Synonyms

undo

Antonyms

fasten, button, button up, do up, tie up, zip, zip up