1
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
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Antonyms & Near Antonyms
2
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
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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
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
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Not all blondes are dumb, don’t judge a book by its cover, yada yada yada, lo and behold, Reese Witherspoon is a certified movie star.
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Though Cady has made some gestures toward helping the Bowdens, like his behind-the-scenes effort to get one of Anna’s death-row clients exonerated last week, Tom and Anna should not be so dumb as to ignore his ulterior motives.
Adjective
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And no, that was NOT OutKick or FOX who wrote that stupid headline.
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The thing about House of the Dragon is that everything really is quite stupid.
Adjective
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There was no repeat of the slow start that cost him a spot last season.
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The house old-fashioned can be made with bourbon or gin and is a much slower sip.
Adjective
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Further, Plato’s disdain for Gorgias, Antisthenes’ first teacher, and sophistry in general is clear; in the Platonic dialogue Gorgias, the titular character is made out to be rather foolish.
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One is villianized and one is made to look foolish.
Adjective
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As for the volunteers, the goal is simple—help someone stay safe before the heat turns into an emergency.
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Evidence for at-home tools is thinner than for professional manual drainage, but the simplest options can offer mild circulation and surface-lymph support at a low price.
Adjective
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Every player with a pulse had six suitors throwing silly money around.
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Some scenes in the movie are light and silly, including those pairing Maddie with a lesbian friend, played by Kate Berlant, who clearly loves her.
Adjective
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The combination makes strands thicker, fuller, stronger, frizz-free, and softer—and thus, longer with less shedding and breakage.
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The brown, round cookie has arms and legs, one eyebrow thicker than the other, and one buck tooth.
Adjective
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For example, Fred Again is absolutely doing insane things with the MPC Lives.
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That dwarfs anything the powerhouse Spain teams did in the early 2010s, when the team was known for stringing together an insane number of passes that led to a goal.
Cite this Entry
“Brainless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainless. Accessed 5 Jul. 2026.
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