[ blahynd-nis ]
See synonyms for blindness on
  1. the inability to see; the condition of having severely impaired or absolutely no sense of sight: Patients are first asked if their blindness is congenital or the result of injury or disease.

  2. an unwillingness or inability to perceive or understand; lack of judgment; ignorance: Your blindness to this behavior has allowed his anxiety to worsen.

Origin of blindness

First recorded before 1000; blind + -ness

Words Nearby blindness Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use blindness in a sentence

Scientific definitions for blindness


[ blīndnĭs ]

  1. A lack or impairment of vision in which maximal visual acuity after correction by refractive lenses is one-tenth normal vision or less in the better eye. Blindness can be genetic but is usually acquired as a result of injury, cataracts, or diseases such as glaucoma or diabetes. In Asia and Africa, trachoma is a common infectious cause of blindness.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.