[ dih-fawrmd ]
/ dɪˈfɔrmd /


having the form changed, especially with loss of beauty; misshapen; disfigured: After the accident his arm was permanently deformed.
hateful; offensive: a deformed personality.

Nearby words

  1. deforest,
  2. deforestation,
  3. deform,
  4. deformalize,
  5. deformation,
  6. deformed bar,
  7. deformeter,
  8. deformity,
  9. defra,
  10. defrag

Origin of deformed

Middle English word dating back to 1350–1400; see origin at deform1, -ed2

Related formsde·form·ed·ly [dih-fawr-mid-lee] /dɪˈfɔr mɪd li/, adverbde·form·ed·ness, nounnon·de·formed, adjectiveun·de·formed, adjective


[ dih-fawrm ]
/ dɪˈfɔrm /

verb (used with object)

to mar the natural form or shape of; put out of shape; disfigure: In cases where the drug was taken during pregnancy, its effects deformed the infants.
to make ugly, ungraceful, or displeasing; mar the beauty of; spoil: The trees had been completely deformed by the force of the wind.
to change the form of; transform.
Geology, Mechanics. to subject to deformation: The metal was deformed under stress.

verb (used without object)

to undergo deformation.

Origin of deform

1350–1400; Middle English deformen < Latin dēfōrmāre, equivalent to dē- de- + fōrmāre to form

1. misshape. See mar. 2. ruin.

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for deformed

British Dictionary definitions for deformed


/ (dɪˈfɔːmd) /


disfigured or misshapen
morally perverted; warped
Derived Formsdeformedly (dɪˈfɔːmɪdlɪ), adverbdeformedness, noun


/ (dɪˈfɔːm) /


to make or become misshapen or distorted
(tr) to mar the beauty of; disfigure
(tr) to subject or be subjected to a stress that causes a change of dimensions
Derived Formsdeformable, adjectivedeformability, noundeformer, noun

Word Origin for deform

C15: from Latin dēformāre, from de- + forma shape, beauty

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

Word Origin and History for deformed



c.1400, "to disfigure," from Old French deformer (13c.), from Latin deformare "put out of shape, disfigure," from de- (see de-) + formare (see form (v.)). Related: Deformed; deforming.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for deformed


[ dĭ-fôrmd ]


Distorted in form.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.