[ lahyt-lis ]
/ ˈlaɪt lɪs /


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 forms

light·less·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lightless