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nonluminous

nonluminous

6.8
Not giving off light by itself
  • adjective
  • /nɒnˈluːmɪnəs/
  • Specialized
translation icon : no luminoso
  • Another 22 percent or so is a mysterious, nonluminous, and ghostly stuff known as "dark matter," which does not interact appreciably with proton-neutron-electron stuff like us.

Examples

  • The artist chose to paint with nonluminous colors to create a somber mood in the scene.

  • The room was filled with nonluminous objects, making it difficult to see clearly.

  • In astronomy, many nonluminous celestial bodies can be detected by their gravitational effects.

Synonyms

nonradiative
vsnonluminous
  • Specialized
8.4

Energy that does not leave as light but becomes heat inside a material

refers only to lack of self produced visible light or glowing appearance

Antonyms

459 1.0

Full of strong light that makes a place easy to see

38 4.8

Shining with a soft steady light like a lantern

How Bright

bright
459 1.0
luminous
38 4.8
dim
62 1.0
nonluminous
  • Specialized
6.8
dark
1.0

Surface Forms

nonluminous positive

Morphology

nonluminous = luminous (transparent) = non + luminous + non

The adjective is formed by the productive negation prefix 'non-' added to 'luminous', yielding the straightforward meaning 'not emitting light'.

Etymology

Nonluminous comes from non- meaning 'not' and luminous meaning 'giving light'. So, a nonluminous object is 'not' producing its own light and only shines when light falls on it, like the moon.