unbuckle

American  

[uhn-buhk-uhl] / ʌnˈbʌk əl /

verb (used without object)

unbuckled, unbuckling

1. to unfasten the buckle or buckles of.

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verb (used without object)

unbuckled, unbuckling

1. to undo a buckle.

Etymology

Origin of unbuckle

First recorded in 1350–1400, unbuckle is from the Middle English word unboclen. See un- ², buckle

Explanation

To unbuckle is to release a belt or clasp — to unfasten. You're going to have to unbuckle your seat belt before you get out of the car. The verb unbuckle adds the prefix un- (""reverse of") to buckle, which stems from the Latin word buccula, "cheek strap of a helmet." So just as you buckle your helmet before you jump on your bike, you unbuckle it once you arrive at your friend's house.

Example Sentences

After crossing in complete silence, he turned and told me to unbuckle the straps on my pack and follow exactly in his footsteps.

From Los Angeles Times • Jun. 9, 2023

The door opens and Allan can be seen moving, although it’s unclear whether he’s trying to unbuckle his seatbelt or access the holster.

From Seattle Times • Mar. 8, 2023

When they got to Feighan’s apartment, the younger man went to unbuckle his seatbelt, only to have the partner throw his arm across his chest to hold him down.

From The Verge • Aug. 10, 2021

There, the crew members can unbuckle their seat belts and experience weightlessness for several minutes before strapping back in.

From Washington Post • Jul. 20, 2021

As a matter of fact, by the time I put the car in park, unbuckle my seat belt, and reach to shut off the ignition, she’s opening the passenger door and climbing in.

From "Odd One Out" by Nic Stone