Synonyms & Antonyms of umbra

1 a time or place of little or no light
  • strange noises were coming from the wooded umbra beyond our campfire

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2 partial darkness due to the obstruction of light rays
  • during a solar eclipse observers located within the umbra experience a complete blocking of the sun by the moon

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The first known use of umbra was in 1638

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Cite this Entry

“Umbra.” Thesaurus, Merriam-Webster, Accessed 11 Aug. 2020.

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Dictionary: Definition of umbra

Britannica English: Translation of umbra for Arabic Speakers Encyclopedia article about umbra

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