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Synonyms

uncoil

American  
[uhn-koil] / ʌnˈkɔɪl /

verb (used with or without object)

  • uncoils,
    present (3rd person singular)
  • uncoiled,
    past participle,  past
  • uncoiling
    present participle
  1. to unwind from a coiled position.


uncoil British  
/ ʌnˈkɔɪl /

verb

  1. to unwind or become unwound; untwist

"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

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Etymology

Origin of uncoil

First recorded in 1705–15; un- 2 + coil 1

Explanation

To uncoil is to straighten something out that's been curled or twisted, the way you uncoil a long, thin piece of red licorice, chewing it as you go. When something is coiled, it's wound or curled into a spiral shape. You can even call it a coil, like a coil of rope on the deck of a sailboat. Make it straight by untwisting it, and you uncoil it: "Leave my snake alone! Don't try to uncoil her!" The prefix un- means "reverse or opposite of," and coil, "gather into rings," comes from a root meaning "to gather or collect."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

There is fundamental pent-up demand for home improvement that should uncoil as housing turnover improves.

From Barron's Jan. 29, 2026

Slamming her feet down on the springboard, Biles compresses the springs that then uncoil and transfer energy back into her body as she reaches up and backward for the vault table.

From Los Angeles Times Jul. 23, 2024

Had I said, "I love you"? I will never be able to uncoil that memory from my brain.

From Salon May 2, 2023

The tension, the worry, the fear is still there, but Sabrina feels herself uncoil now that she’s racing.

From Slate Jan. 29, 2022

I uncoil the flowers, stretching out their petals and stems.

From "The Belles" by Dhonielle Clayton

When the material is pulled, hidden length inside the polymer uncoils, allowing it to elongate up to 40 times more than standard polymers without weakening.

From Science Daily Nov. 27, 2024

But Mills can tell when Junie is over it herself: Her tongue uncoils further out the crook of her mouth, dashes turn into trots, trots turn into steps, steps turn to sit.

From Washington Post Aug. 24, 2022

A final curl of smoke uncoils in the wind.

From Seattle Times Aug. 10, 2022

Soon after its encouraging opening, “Spiral” clumsily uncoils.

From Los Angeles Times May 13, 2021

Lala uncoils something from her hip and looks at her crew.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

On the drive out that afternoon, between fields of corn and sunflowers, miles of newly uncoiled barbed wire glint in the sunlight.

From BBC Aug. 24, 2025

She spoke with the force of a spring uncoiled and the determination of a balled-up fist.

From Los Angeles Times Aug. 21, 2024

Razor wire has also been uncoiled along the border.

From Washington Times Sep. 27, 2023

Officers from Customs and Border Protection uncoiled razor wire across the railway gate.

From Reuters Aug. 8, 2023

Screeching, her dragons uncoiled and spread their wings.

From "A Clash of Kings" by George R.R. Martin

He exploded out of his stance, a spring uncoiling, and his cleats ripped through the grass.

From Washington Post Mar. 3, 2023

He published photographs of security officers uncoiling barbed wire next to a wall that appeared more than two metres high.

From Reuters Nov. 11, 2022

It’s followed by an uncoiling down the mound with the left hand holding the baseball last in the movement.

From Seattle Times Mar. 17, 2022

On his way up, he span round on an uncoiling rope with the camera on his back: “There’s GoPro footage of that which still makes me ill.”

From The Guardian Mar. 29, 2018

But it had to be done in one continuous and unbroken cycle of uncoiling and coiling the body.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

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