luminous

[ loo-muh-nuhs ]
/ ˈlu mə nəs /

adjective

radiating or reflecting light; shining; bright.
lighted up or illuminated; well-lighted: the luminous ballroom.
brilliant intellectually; enlightened or enlightening, as a writer or a writer's works: a luminous concept; luminous prose.
clear; readily intelligible: a concise, luminous report.

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Origin of luminous

First recorded in 1400–50; late Middle English word from Latin word lūminōsus. See lumen, -ous

ANTONYMS FOR luminous

1, 2 dark.
3 stupid.

OTHER WORDS FROM luminous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for nonluminous

luminous
/ (ˈluːmɪnəs) /

adjective

radiating or reflecting light; shining; glowingluminous colours
(not in technical use) exhibiting luminescenceluminous paint
full of light; well-lit
(of a physical quantity in photometry) evaluated according to the visual sensation produced in an observer rather than by absolute energy measurementsluminous flux; luminous intensity Compare radiant
easily understood; lucid; clear
enlightening or wise

Derived forms of luminous

luminously, adverbluminousness, noun

Word Origin for luminous

C15: from Latin lūminōsus full of light, from lūmen light
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for nonluminous

luminous
[ lōōmə-nəs ]

adj.

Emitting light, especially emitting self-generated light.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.