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
Relevance
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
-
The definition of insanity is doing the same thing over and over, expecting a different result.—
Mary Ramsey
April 8,
Charlotte Observer,
8 Apr. 2026 -
Clancy will be undergoing a forensic psychological evaluation later this week after Reddington informed the court of her intention to plead not guilty by reason of insanity at trial.—
Chris Spargo,
PEOPLE,
8 Apr. 2026
Noun
-
The UConn men and women have created countless memories through the madness of March and onto the championships won in April.—
Kels Dayton,
Hartford Courant,
7 Apr. 2026
-
Monthly records for the state go back to 1895, so experts know there's a lot to March's madness.—
Alan Gionet,
CBS News,
4 Apr. 2026
Noun
-
Other considerations include matching the frame to your mattress’s thickness and leaving about 24 inches of walking space around the bed.—
Sharon Brandwein,
USA Today,
4 Apr. 2026
-
This technique enables precise control over the coating thickness and uniformity, potentially improving performance while reducing material usage and production costs.—
Prabhat Ranjan Mishra,
Interesting Engineering,
4 Apr. 2026
Noun
-
Their simplicity in dress masks their tremendous success.—
Condé Nast,
Condé Nast Traveler,
7 Apr. 2026
-
On one hand, there’s a simplicity to the song, and yet there’s a lot of complex things going on behind it.—
Steve Appleford,
SPIN,
6 Apr. 2026
Noun
-
If not for the stupidity of Joe Biden and the Democrats, ICE would have an easier job.—
Sun Sentinel Editorial Board,
Sun Sentinel,
31 Mar. 2026
-
Smart, skilled, hardworking people gracefully put up with all manner of tragedy, stupidity, and institutional rot.—
Josh Tyrangiel,
The Atlantic,
22 Mar. 2026
Noun
-
The absurdity is that Democratic voters outnumber Republicans in California by nearly 2 to 1.—
George Skelton,
Mercury News,
3 Apr. 2026
-
When the couple falls into a little Noel Cowardesque riff, the play’s central confession arrives like a comic absurdity.—
Steven Winn,
San Francisco Chronicle,
3 Apr. 2026
Noun
-
There’s the White House and its malicious megaphone of mindlessness; the generative AI advocates and their pushy, pathetic ploys; the Major League Baseball owners and their dedication to self-destruction.—
Ben Travers,
IndieWire,
20 Feb. 2026
-
The show’s real villain is mindlessness, in other words.—
Shirley Li,
The Atlantic,
5 Feb. 2026
Noun
-
Unlike its sibling concepts of dumbness and idiocy, stupidity isn’t really a personality trait.—
Jonny Thomson,
Big Think,
11 Feb. 2026
-
Compare that to punk rock, which used dumbness as a tactic.—
Arkansas Online,
Arkansas Online,
14 Aug. 2025
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Cite this Entry
“Brainlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainlessness. Accessed 13 Apr. 2026.
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