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 chaotic family life was cited when Cary Stayner pleaded not guilty by reason of insanity to the tourists’ murders; he was found mentally fit to stand trial.—
Bay Area News Group,
Mercury News,
4 May 2026 -
Call it a runner's high or insanity; the marathon takes just about everything a person can muster up physically and mentally.—
CBS News,
CBS News,
30 Apr. 2026
Noun
-
As artists are wont to do, the two descend into … madness?—
Elaina Patton,
IndieWire,
12 May 2026
-
This time, of course, Rodgers is the one responsible for the melodrama, albeit a far tamer manifestation of it than the madness Favre generated in his final days in Green Bay.—
Michael Silver,
New York Times,
12 May 2026
Noun
-
Working in batches, add 2 meatballs to skillet; flatten each to 1/4-inch thickness using a wide sturdy spatula.—
Jasmine Smith,
Southern Living,
9 May 2026
-
By the Second World War, the steel alloys had improved in composition, metal fabrication methods made armor more homogeneous, and the thickness was increased to create much tougher plating.—
David Szondy
May 07,
New Atlas,
7 May 2026
Noun
-
The simplicity of LaceLocker® also remains central to its appeal.—
Nia Bowers,
USA Today,
12 May 2026
-
The fresh flip-flop offerings prove that simplicity need not be sacrificed for stylishness, and that all-day comfiness should most certainly not take a back seat to a head-turning summertime aesthetic.—
Stacia Datskovska,
Footwear News,
11 May 2026
Noun
-
That men like Mark Zuckerberg and Elon Musk are entrusted with businesses of tectonic influence can be difficult to understand, but their cults of personality have been able to survive scrutiny, perhaps because the money itself is too imposing a firewall for their own stupidity to penetrate.—
Scott Tobias,
Vulture,
19 Apr. 2026
-
Eric Swalwell, a prominent Democratic House member and a front-runner in the race for California governor, had his political career blown up by allegations of degeneracy and abject stupidity.—
Michelle Cottle,
Mercury News,
16 Apr. 2026
Noun
-
As Akhavan speaks, the absurdity of reading the lilies as emblems of colonialism is impossible to ignore.—
Harrison Jacobs,
ARTnews.com,
6 May 2026
-
Church went to the Holy Land in search of sublimity; Twain fastened on the absurdities of those determined to find it.—
Sebastian Smee,
New Yorker,
4 May 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
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.
Cite this Entry
“Brainlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainlessness. Accessed 14 May. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
