verb (used with object), un·strapped, un·strap·ping.

to take off or slacken the strap of.

Origin of unstrap

First recorded in 1820–30; un-2 + strap
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unstrap

Historical Examples of 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

    Rounsevelle Wildman

  • Gilbert dropped on one knee beside a portmanteau, and began to unstrap it.

  • 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

    Frank Williams