unbuckle

verb

un·​buck·​le ˌən-ˈbə-kəl 

unbuckled; unbuckling

transitive verb

: to loose the buckle of : unfasten

intransitive verb

1

: to loosen buckles

2

: relax

Examples of unbuckle in a Sentence

She unbuckled her seat belt.

Recent Examples on the Web

Open your Shop-Vac by unbuckling the side latches and lifting the top unit off the machine. — Bestreviews, Chicago Tribune, 11 Sep. 2026

The guests hop up and down on one foot, unbuckling shoes, some falling on the floor, others grabbing body parts or wet laundry for support. — Literary Hub, 8 June 2026

In the event of a sinking car with passengers inside, AAA advises drivers to stay calm, unbuckle their seat belts, roll down or break a window and escape before the car begins to fill with water. — Paloma Chavez, PEOPLE, 8 Apr. 2026

Whelan was panicked by the assault, according to the court document, and struggled to unbuckle her seat belt. — Nick Lentz, CBS News, 1 Apr. 2026

Word History

First Known Use

14th century, in the meaning defined at transitive sense

Kids Definition

unbuckle

verb

un·​buck·​le ˌən-ˈbək-əl 

: to unfasten the buckle of (as a belt)