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What is the opposite of “illuminous”?

What is the antonym of “illuminous”?

The antonyms of illuminous are dull, dark, and dim. The antonyms convey a lack of brightness, light, or clarity.

Brief Definitions of the Antonym(s)

Learn when and how to use these words with these examples!


Lacking brightness, vividness, or clarity.


The sky was dull and gray on that winter morning.


Lacking or having very little light; not bright or illuminated.


The room was dark and gloomy, with no windows to let in the sunlight.


Lacking brightness or clarity; not shining brightly.


The streetlights were dim and flickering, making it hard to see the road ahead.

How are these antonyms different from each other?

  • 1Dull refers to a lack of brightness or vividness, while dark implies a complete absence of light.
  • 2Dim suggests a slight reduction in brightness or clarity, while dark conveys a more significant lack of illumination.
  • 3Dull and dim are gradable antonyms, meaning they can be used to describe varying degrees of brightness, while dark is a complementary antonym, meaning it is the opposite of illuminous.

Good things to know

  • 1Describing Light: Use these antonyms to describe the brightness or clarity of objects or environments.
  • 2Setting the Mood: Incorporate these words to create a specific atmosphere or mood in writing or speaking.
  • 3Comparing and Contrasting: Use these antonyms to compare and contrast different levels of brightness or illumination.

Remember this!

The antonyms of illuminous are dull, dark, and dim. These words convey different degrees of brightness, with dull and dim being gradable antonyms and dark being a complementary antonym. Use these words to describe light, set the mood, or compare and contrast different levels of brightness.

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