Synonyms & Antonyms of blue

(Entry 1 of 2)

2 feeling unhappiness
  • a cold, dreary day always leaves me blue

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3 hinting at or intended to call to mind matters regarded as indecent
  • a lighthearted comedy with a few moments of blue humor

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Synonyms of blue (Entry 2 of 2)

1 the expanse of air surrounding the earth
  • the plane flew off into the blue and was never seen again

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2 the whole body of salt water that covers nearly three-fourths of the earth
  • pirate ships that sailed the vasty blue in search of treasure

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Time Traveler for blue

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The first known use of blue was in the 13th century

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Cite this Entry

“Blue.” The Thesaurus, Merriam-Webster Inc., Accessed 13 December 2019.

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More from Merriam-Webster on blue

Dictionary: Definition of blue

Rhyming Dictionary: Words that rhyme with blue

Medical Dictionary: Definition of blue

Spanish Central: Translation of blue

Nglish: Translation of blue for Spanish Speakers

Britannica English: Translation of blue for Arabic Speakers

Comments on blue

What made you want to look up blue? Please tell us where you read or heard it (including the quote, if possible).


easily led, controlled, or managed

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