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verb (used with object), un·stuck, un·stick·ing.
  1. to free, as one thing stuck to another.
verb (used without object), un·stuck, un·stick·ing.
  1. to become unstuck: Finally, the car's horn unstuck.

Origin of unstick

First recorded in 1700–10; un-2 + stick2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unstick

Historical Examples

  • And, come to that, I don't need to unstick the envelope to know what's inside here.

    The Girl on the Boat

    Pelham Grenville Wodehouse

British Dictionary definitions for unstick


verb -sticks, -sticking or -stuck
  1. (tr) to free or loosen (something stuck)
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