De*form"i*ty (?), n.; pl. Deformities (#). [L. deformitas, fr. deformis: cf. OF. deformeté, deformité, F. difformité. See Deform, v. & a., and cf. Disformity.] 1. The state of being deformed; want of proper form or symmetry; any unnatural form or shape; distortion; irregularity of shape or features; ugliness.

To make an envious mountain on my back,
Where sits deformity to mock my body.

2. Anything that destroys beauty, grace, or propriety; irregularity; absurdity; gross deviation from order or the established laws of propriety; as, deformity in an edifice; deformity of character.

Confounded, that her Maker's eyes
Should look so near upon her foul deformities.

• The state of being deformed.
  
• Something which is deformed.