as in blind
lacking the power of sight bats are often thought to be completely sightless, but this is not really true

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of sightless These tiny fossorial ophidians — though not the tiniest (that title belongs to this 4-inch snake from Barbados) — are nearly sightless. Scott Travers, Forbes.com, 25 Apr. 2025 By hooking up the brains of blind rats to compasses, scientists in Japan found the sightless rodents could navigate a maze nearly as well as normally sighted rats. IEEE Spectrum, 2 Apr. 2015 That makes for quick, sightless control of both radio volume and climate temperature. Gordon G. Chang, Newsweek, 11 Dec. 2024 Our new unlucky heroine is terminally ill writer Sam (Lupita Nyong’o), out of the hospital on a day trip to the city when sightless monsters begin falling from the sky. A.a. Dowd, Vulture, 28 June 2024 Despite the chaos and confusion, it’s quickly established that the extraterrestrial predators are sightless and respond only to noise. David Rooney, The Hollywood Reporter, 27 June 2024 By tapping and touching, the sightless person does not feel the cane per se but the objects—the curb, the doorway—that are felt through the tool, in the same way sighted people experience these objects through their eyes. Chip Colwell, Smithsonian Magazine, 26 Feb. 2024 The distraught and sightless Orion wandered hopelessly for days on end. Mike Lynch, Twin Cities, 25 Feb. 2024 Yet some sightless species have retained the ability to sense light. Jack Tamisiea, Scientific American, 20 Dec. 2023
Recent Examples of Synonyms for sightless
Adjective
  • Doctors had braced Gianna's parents for the possibility that their daughter might be blind, mute or unable to swallow as the tumor pressed down on the vital nerves of her brain stem.
    Christopher Cann, USA Today, 25 Apr. 2025
  • Without real-time insight into production, companies are flying blind.
    SJ Studio, Sourcing Journal, 25 Apr. 2025

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“Sightless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sightless. Accessed 4 May. 2025.

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