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Definition of luminous

luminous

/ˈluː.mɪ.nəs/
lu · mi · nous
Adverb:luminously
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luminous Lexical Profile

luminous Game Scores & Validity

• adjective

1

Emitting or reflecting steady, bright, or glowing light, especially in the dark.

Example

"The diver's watch had a luminous dial that was easy to read in the murky water."

2

Intellectually clear, enlightening, or easily understood; inspiring or full of vitality.

Example

"The professor delivered a luminous lecture that clarified the most complex concepts of quantum mechanics."

Synonyms
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Antonyms
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• Rhymes for luminous

• Nearby Words

luminescence
luminescent
luminosity
luminous
luminously
lump
lumpectomy

Word Origin & Etymology

Borrowed in the 15th century from Old French lumineux, from Latin luminosus ('full of light'), derived from lumen ('light').

Cite this Entry

Wordmom. (2026). Definition of Luminous. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/luminous
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