- to take off or slacken the strap of.
Origin of unstrap
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unstrap
Just unstrap that writing-desk, and I will write a few lines.Luttrell Of Arran
Charles James Lever
The “boy” brought the liquor, while I commenced to unstrap and dry my Winchester.Tales of the Malayan Coast
Gilbert dropped on one knee beside a portmanteau, and began to unstrap it.The Cruise of the Make-Believes
He therefore ordered the men to unstrap the cover and pull it around.L. P. M.
J. Stewart Barney
He had turned his back to unstrap the pack, when he heard a sound behind him.The Wilderness Trail