without light or lights; receiving no light; dark.
giving no light.

Origin of lightless

before 1000; Middle English lihtles, Old English lēohtlēas. See light1, -less
Related formslight·less·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lightless

Contemporary Examples of lightless

Historical Examples of lightless

  • The Cedars stood before us as yet lightless against the northern sky.

    In the Valley

    Harold Frederic

  • Not in her most ponderous and lightless masses will nature ever leave us 14.

  • For it seemed to him that it must be the death of him followed by a lightless, bottomless pit.

    Within the Tides

    Joseph Conrad

  • The little tender, lightless, escaped their observation, and we were picked up.

    The Ultimate Weapon

    John Wood Campbell

  • But there was a narrow, lightless alleyway a few steps ahead.

    The Butterfly Kiss

    Arthur Dekker Savage

Word Origin and History for lightless

Old English leohtleas; see light (n.) + -less.

Online Etymology Dictionary, © 2010 Douglas Harper