'Unfasten' definitions:

Definition of 'unfasten'

(from WordNet)
verb
Cause to become undone; "unfasten your belt" [ant: fasten, fix, secure]
verb
Become undone or untied; "The shoelaces unfastened" [ant: fasten]

Definition of 'Unfasten'

From: GCIDE
  • Unfasten \Un*fas"ten\, v. t. [1st pref. un- + fasten.] To loose; to unfix; to unbind; to untie. [1913 Webster]

Synonyms of 'unfasten'

From: Moby Thesaurus

Words containing 'Unfasten'