[uhn-fas-uh n, -fah-suh n]
- to release from or as from fastenings; detach.
- to undo or open (something fastened).
- to become unfastened.
Origin of unfasten
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unfasten
They also began to strip off their shirts and unfasten their vests.The Fourth War: My Lunch with a Jihadi
January 21, 2014
Then with her slender fingers she tried to unfasten the knots that secured the cord.Henry Dunbar
M. E. Braddon
He was irritated to find that he could not unfasten the knot in which he had tied his reins.Abbe Mouret's Transgression
Jeter frantically tried to unfasten the handcuffs as they ran.Lords of the Stratosphere
Arthur J. Burks
He carries his purse-strings in a knot which it would break his heart to unfasten.The Suitors of Yvonne
Without a word, he began to unfasten it, with hands which trembled.
- to undo, untie, or open or become undone, untied, or opened
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for unfasten
Online Etymology Dictionary, © 2010 Douglas Harper