Synonyms & Antonyms of loon

1 one having or showing a severely disordered or abnormal state of mind
  • giggled like a loon at his own jokes

Synonyms for loon

Words Related to loon

2 a stupid person
  • the loons at the grocery store had put the potato chips at the bottom of the bag

Synonyms for loon

Words Related to loon

Phrases Synonymous with loon

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Antonyms for loon

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Time Traveler for loon

Time Traveler

The first known use of loon was in the 15th century

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Cite this Entry

“Loon.” The Thesaurus, Merriam-Webster Inc., Accessed 29 January 2020.

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More from Merriam-Webster on loon

Dictionary: Definition of loon

Rhyming Dictionary: Words that rhyme with loon

Spanish Central: Translation of loon

Nglish: Translation of loon for Spanish Speakers Encyclopedia article about loon

Comments on loon

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


to assert without proof or before proving

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