to free, as one thing stuck to another.
to become unstuck: Finally, the car's horn unstuck.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use unstick in a sentence
When the rocks suddenly unstick, or snap, they release all that stress as an earthquake.What can ‘silent earthquakes’ teach us about the next Big One? | JoAnna Wendel | November 11, 2021 | Science News For Students
When we dissolve sugar in water, all we do is unstick those true molecules.Explainer: In chemistry, what does it mean to be organic? | Katie Grace Carpenter | October 7, 2021 | Science News For Students
What those glues typically can’t do, however, is later unstick and restick on command.New glue offers to turn any small walking robot into Spider-Man | Shi En Kim | August 18, 2021 | Science News For Students
There are a bevy of metaphorical interpretations both of the ship getting stuck and the comparatively tiny machines trying to unstick it.Why a ship stuck in Egypt threatens the economy in the United States | Philip Bump | March 25, 2021 | Washington Post
Beyond that, keeping your blood flowing and exercising your limbs’ full range of motion can unstick any tissues in your arm that are over-compressed.The best way to prevent arm pain from using your phone too much | Hannah Seo | March 11, 2021 | Popular-Science
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
(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