- untying, undoing, unfastening - loosening the ties that fasten something; "the tying of bow ties is an art; the untying is easy"
--1 is a kind of loosening, laxation
Derived forms: verb unfasten1, verb unfasten2
- unfasten - cause to become undone; "unfasten your belt"
--1 is one way to undo
Antonyms: fasten, fix, secure
Sample sentences:Derived forms: noun unfastener1, noun unfastening1
Somebody ----s something
Something ----s something
- unfasten - become undone or untied; "The shoelaces unfastened"
--2 is one way to open, open up
Antonyms: fasten
Sample sentence:Derived form: noun unfastening1
Something ----s