BRAINLESS Synonyms: 197 Similar and Opposite Words

brainless

adjective

ˈbrān-ləs

as in dumb

not having or showing an ability to absorb ideas readily a teacher who affirms that there are no brainless students, only lazy ones

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in stupid

showing or marked by a lack of good sense or judgment a brainless decision to talk on her cell phone while weaving in and out of traffic

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of brainless This extends well beyond the 2025 Bombers, their signature head-scratching and somewhat brainless play on the field has plagued them dating back to 2021. —

James O'Connell, New York Daily News, 7 Aug. 2025 There's really no way to prep for the show — basically, just don't be brainless. —

Lindsay Soll, EW.com, 25 July 2025 The O’Haras happen to move in next door to him. Frothy and often filthy without being brainless (send thanks across the Atlantic for that good British dialogue), this is escapism done right. —

Judy Berman, TIME, 30 Oct. 2024 So, what can the neuronal activity of a tiny, brainless creature possibly tell us about the evolution of our own complex brains? —

Elizabeth Rayne, Ars Technica, 15 June 2024 See All Example Sentences for brainless

Recent Examples of Synonyms for brainless

Adjective

Everyone in this room is now dumber for having listened to it.

— Jon Root OutKick, FOXNews.com, 22 May 2026
Pete Crow-Armstrong is young, but not dumb.

— Jon Greenberg, New York Times, 22 May 2026