1
as in insanity
lack of good sense or judgment
had the inexplicable brainlessness to sell his car for half of what it was worth
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in stupidness
the quality or state of lacking intelligence or quickness of mind
the turkey is one bird that has often been cited for its brainlessness
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for brainlessness
Noun
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Defense had planned to argue insanity Purdy’s trial had been scheduled to take place in July.—
Emerson Clarridge,
Fort Worth Star-Telegram,
27 June 2025 -
The trial was initially scheduled to begin three months ago but was delayed after Abril changed his plea to not guilty by reason of insanity.—
Rosalio Ahumada,
Sacbee.com,
25 June 2025
Noun
-
The there is the early childhood of the people she’s been visiting, most of whom are now in their late 80s or 90s — the innocent pre-World War II days before the round-ups, the concentration camps, the madness, the murder.—
Christine DiMattei,
Sun Sentinel,
18 June 2025
-
Irresistible madness: Boca Juniors and Benfica see red, Chelsea ease past LAFC Now then.—
Phil Hay,
New York Times,
17 June 2025
Noun
-
The thickness that each press can achieve also varies.—
BestReviews,
Chicago Tribune,
17 June 2025
-
Click on the round brush head, and the tool transforms into a hair dryer brush that’s ideal for all hair lengths and thicknesses.—
Olivia Cigliano,
Footwear News,
12 June 2025
Noun
-
Each brand employs a strikingly similar aesthetic vocabulary: muted color palettes dominated by whites, blacks, and earth tones; sans-serif typography that suggests clinical precision; and packaging that prioritizes geometric simplicity over ornamental flourish.—
Adam Hurly,
Robb Report,
24 June 2025
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In fact, many found AI content to be more personable and enjoyable, possibly due to its simplicity and accessibility.—
Katie Jewett,
Forbes.com,
24 June 2025
Noun
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Critics often assume ego, stubbornness, or simply stupidity.—
Robert Pearl,
Twin Cities,
14 June 2025
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The following program will contain graphic stupidity, as four friends compete to embarrass one another – only this time in Lithuania.—
Jesse Whittock,
Deadline,
9 June 2025
Noun
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Mika Rottenberg’s work explores the pure absurdities of our current world.—
Nargess Banks,
Forbes.com,
25 June 2025
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These over-the-top moments and the absurdity of its title may be the elements that made Zombi 2 famous, but beneath them is a movie with an eerie, uncanny vibe that's shockingly easy to get lost in.—
James Grebey,
Time,
20 June 2025
Noun
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Much odder is that red states aren’t taking the blue states up on an arrangement that to some degree erects a fence around economic foolishness.—
John Tamny,
Forbes.com,
7 June 2025
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Such utter foolishness, by another blind leading the blind, liberal democrat.—
DP Opinion,
Denver Post,
10 June 2025
Noun
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Whereas the ogive nose minimizes drag and structural shock, the high sectional density concentrates velocity and force, allowing the bomb to punch deep into stone.—
Deni Ellis Béchard,
Scientific American,
18 June 2025
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Activities include hiking, biking, and wild swimming—all made more possible with a lower density of wildlife.—
Melanie van Zyl,
AFAR Media,
16 June 2025
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Cite this Entry
“Brainlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainlessness. Accessed 3 Jul. 2025.
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