[ blahynd-nis ]
/ ˈblaɪnd nɪs /
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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.
an unwillingness or inability to perceive or understand; lack of judgment; ignorance: Your blindness to this behavior has allowed his anxiety to worsen.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of blindness

First recorded before 1000; blind + -ness
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use blindness in a sentence

Scientific definitions for blindness

[ blīndnĭs ]

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.