Definition

Noun: The condition of being unable to see; the state of lacking the sense of sight.

Usage

"Sightlessness" is a formal and clinical term used to describe the complete or near-complete absence of vision. It is often used in medical, scientific, or academic contexts.

Examples

• The accident resulted in his permanent sightlessness.
• Researchers are studying new therapies to prevent sightlessness caused by certain diseases.
• She has adapted remarkably well to her sightlessness.

Advanced Usage

• "Congenital sightlessness": Refers to blindness that is present from birth.
  • The organization provides support for children with congenital sightlessness.
• "The psychological impact of sightlessness": Used in academic discussions about the non-physical effects of blindness.
  • The study focused on the psychological impact of sightlessness.

Variants and Related Words

• Blindness (noun): The more common and general synonym for sightlessness.
• Vision loss (noun phrase): A broader term that can include partial loss of sight.
• Sightless (adjective): Lacking sight; blind.
  • The sightless man navigated the room with confidence using his cane.

Synonyms

• Blindness
• Vision impairment (a broader term that includes partial sight loss)
• Loss of sight

Antonyms

• Sight
• Vision
• Eyesight

Noun

1. the state of being blind or lacking sight