Synonyms & Antonyms of jackass

1 a person who lacks good sense or judgment
  • only a jackass would dive into a lake without first checking to see how deep the water is

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2 a stupid person
  • you don't have to act like a jackass just to get a girl to notice you

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3 a sturdy and patient domestic mammal that is used especially to carry things
  • with our jackasses loaded with supplies, we slowly made our way down to the floor of the canyon

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Time Traveler for jackass

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The first known use of jackass was in 1727

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Cite this Entry

“Jackass.” Thesaurus, Merriam-Webster, Accessed 14 Apr. 2021.

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