deform

verb

de·​form di-ˈfȯrm How to pronounce deform (audio)
dē-
deformed; deforming; deforms

transitive verb

1
: to spoil the form of
2
a
: to spoil the looks of : disfigure
a face deformed by bitterness
b
: to mar the character of
a marriage deformed by jealousy
3
: to alter the shape of by stress

intransitive verb

: to become misshapen or changed in shape
deformable adjective
Choose the Right Synonym for deform

deform, distort, contort, warp means to mar or spoil by or as if by twisting.

deform may imply a change of shape through stress, injury, or accident of growth.

a face deformed by hatred

distort and contort both imply a wrenching from the natural or normal, but contort suggests a more involved twisting and a more grotesque and painful result.

the odd camera angle distorts the figure
disease had contorted her body

warp indicates an uneven shrinking that bends or twists out of a flat plane.

warped floorboards

Examples of deform in a Sentence

The disease eventually deforms the bones. The disease eventually causes the bones to deform.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to Burlison, the video shows a high-speed object—presumably the missile—hitting the orb, which then deforms, tumbles, and sheds smaller fragments, one barely visible. Amir Daftari, MSNBC Newsweek, 10 Sep. 2025 The unmistakable signature of chilli thrips are blooms that look deformed, scorched, singed and burnt. Rita Perwich, San Diego Union-Tribune, 6 Sep. 2025 As a result, his vocals have a kind of stately yet starry-eyed quality, giving structure to these deformed, cosmic beats from the internet abyss. Kieran Press-Reynolds, Pitchfork, 3 Sep. 2025 This movement deforms a fault network stretching west, where shallow earthquake occur (shown in orange and red). David Bressan, Forbes.com, 1 Sep. 2025 See All Example Sentences for deform

Word History

Etymology

Middle English, from Anglo-French or Latin; Anglo-French desfurmer, from Latin deformare, from de- + formare to form, from forma form

First Known Use

14th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of deform was in the 14th century

Browse Nearby Words

Cite this Entry

“Deform.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deform. Accessed 14 Sep. 2025.

Kids Definition

deform

verb
de·​form di-ˈfȯ(ə)rm How to pronounce deform (audio)
ˈdē-
: to make or become misshapen or changed in shape
deformation
ˌdē-ˌfȯr-ˈmā-shən
ˌdef-ər-
noun

More from Merriam-Webster on deform

Last Updated: - Updated example sentences
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