luminous

C2+ Topic:Describing Qualities

US /ˈlumɪnəs/ UK /ˈluːmɪnəs/ See IPA manual

Meanings

1

adj
giving off or full of light; radiant

The luminous dial glowed softly in the dark.

Thesaurus

Synonyms

1 adj · giving off or full of... radiant glowing bright shining brilliantluminescentincandescent

Opposites

dark dull dim opaque murky

Word family

Forms luminously

Derived forms luminouslyluminousnessluminosity

Related forms luminarylumenilluminateluminescence

Simplified etymology

Luminous entered English from Old French lumineux or directly from Latin luminosus. Both forms derive from Latin lumen, lumin-, meaning “light.”

Etymology

From Latin luminosus ('shining, full of light'), from lumen ('light'), from lucere ('to shine'), ultimately from lux ('light').

luminosus Latin lumen Latin *lewk- Proto-Indo-European

View etymology graph ->

Topics

Describing Qualities Word Formation & Derivatives

External links

# luminous

**Type:** Word
**Level:** C2+
**Part of speech:** adj
**IPA (US):** /ˈlumɪnəs/
**IPA (UK):** /ˈluːmɪnəs/

## Meanings
1. giving off or full of light; radiant

## Examples
- The luminous dial glowed softly in the dark.

## Synonyms
- radiant
- glowing
- bright
- shining
- brilliant
- luminescent
- incandescent

## Antonyms
- dark
- dull
- dim
- opaque
- murky

## Derived Forms
- luminously
- luminousness
- luminosity

## Related Forms
- luminary
- lumen
- illuminate
- luminescence

## Roots and Affixes
- Root: luminosus
- Root: lumen
- Root: *lewk-

## Etymology
From Latin luminosus ('shining, full of light'), from lumen ('light'), from lucere ('to shine'), ultimately from lux ('light').

## AI Etymology
Luminous comes from Latin luminosus ('shining, full of light'), from lumen ('light'), from lucere ('to shine'), ultimately from lux ('light'). The etymological trail includes Latin luminosus, Latin lumen, and Proto-Indo-European *lewk-. As an adjective, luminous means giving off or full of light; radiant. The same family is visible in derived forms such as luminously, luminousness, and luminosity and related forms such as luminary, lumen, illuminate, and luminescence.

## Topics
- Describing Qualities
- Word Formation & Derivatives

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