deform

verb

de·​form di-ˈfȯrm 

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

di-ˈfȯr-mə-bəl 

dē-

adjective

Synonyms of deform

• distort
• contort
• screw

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

On the other hand, if the gold structure is a square pattern, oxygen molecules readily stick to the surface and are deformed to the point of splitting, leaving them available to react (indeed, under these conditions, gold will oxidize as well). —Chris Lee, ArsTechnica, 9 June 2026

The impact with Bell's Camry severely deformed the SAFER barrier, which is comprised of steel and foam to absorb energy in wrecks. —CBS News, 8 June 2026

The impact with Bell’s Camry severely deformed the SAFER barrier, which is comprised of steel and foam to absorb energy in wrecks. —ABC News, 7 June 2026

Fast moving debris has the potential to penetrate or deform a spacecraft's hull, damaging critical systems or even triggering a catastrophic rupture. —Anthony Wood, Space.com, 7 June 2026

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

Rhymes for deform

• brainstorm
• conform
• firestorm
• hailstorm
• inform
• landform
• lukewarm
• perform
• planform
• platform
• preform
• rainstorm

Kids Definition

deform

verb

de·​form di-ˈfȯ(ə)rm 

ˈdē-

: to make or become misshapen or changed in shape

deformation

ˌdē-ˌfȯr-ˈmā-shən, 

ˌdef-ər-

noun