Search Dictionary
Definition of lightless

lightless

/ˈlaɪtləs/
light · less
Adverb:lightlessly
JUMP TO:

lightless Lexical Profile

lightless Game Scores & Validity

• adjective

1

Completely devoid of light or illumination; utterly dark.

Example

"The explorers descended cautiously into the lightless depths of the subterranean cavern."

2

Lacking cheer, hope, or spiritual comfort; dismal or bleak.

Example

"After months of isolation, his letters reflected a bleak and lightless state of mind."

Synonyms
View all synonyms for lightless
Antonyms
View all antonyms for lightless

• Rhymes for lightless

• Nearby Words

lighting
lightish
lightkeeper
lightless
lightly
lightness
lightning

Word Origin & Etymology

From Middle English lightles, descending from Old English lēohtlēas, formed from lēoht ('light') and the privative suffix -lēas ('-less, devoid of').

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Lightless. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lightless
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.