lightless

adjective

light·​less ˈlīt-ləs How to pronounce lightless (audio)
Synonyms of lightlessnext
1
: receiving no light : dark
2
: giving no light

Synonyms of lightless

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Examples of lightless in a Sentence

wondered what might be lurking in the lightless corners of the basement
Recent Examples on the Web
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.
The boy grows up in the lightless void before managing to escape. — Noah Berlatsky, Los Angeles Times, 9 Dec. 2022 For this reason black holes are invisible to the eye, as lightless as the empty, dark space surrounding them. — Sidney Stevens, Treehugger, 14 Mar. 2025 Oh, and the grief was almost a person of its own, darkening the minds of some of the characters as much as any lightless corridor could darken a space. — Literary Hub, 23 Mar. 2026 At night, lightless streets turn into treacherous obstacle courses, especially after snow and rain. — Michael Birnbaum, Washington Post, 23 Nov. 2022 See All Example Sentences for lightless

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of lightless was before the 12th century

Rhymes for lightless

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Browse Nearby Words

lightkeeper
lightless
lightlessness
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Cite this Entry

“Lightless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lightless. Accessed 10 Jul. 2026.

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