as in stupid
showing or marked by a lack of good sense or judgment
had the crackbrained idea that he was receiving radio signals from outer space
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for crackbrained
Adjective
-
And that was so arrogant and stupid on my part.—
Brendan Morrow,
USA Today,
3 June 2026 -
At some point, Brandon Aiyuk has to learn that stupid decisions come with consequences.—
Armando Salguero OutKick,
FOXNews.com,
3 June 2026
Adjective
-
Through the fuzz and the bad camera angles emerges an extraordinary catalogue of dummies, flicks, and feints, a hodge-podge of silly tricks.—
Jack Lang,
New York Times,
28 May 2026
-
To lose that would be silly now.—
Mikey O'Connell,
HollywoodReporter,
28 May 2026
Adjective
-
If the target was foolish enough to reuse passwords, credential thefts like these could enable the compromise of more important accounts.—
Rob Pegoraro,
PC Magazine,
3 June 2026
-
Backing the Cubs right now seems foolish.—
David Troy OutKick,
FOXNews.com,
27 May 2026
Adjective
-
Captain Ahab went mad in his vengeful search for Moby Dick.—
Los Angeles Times,
Los Angeles Times,
27 May 2026
-
Standing at 6 feet 8 inches in heels, Evans towers above cast members including Stephanie Hsu, Juliette Lewis, Harvey Guillén and more, as the mad scientist and head of a paranormal household that has welcomed in two hapless strangers during a rainstorm.—
Caitlin Huston,
HollywoodReporter,
26 May 2026
Adjective
-
After eighteen months of crisis that saw historic urban fires, harassment by federal immigration authorities, and the generalized anxiety that attends a place where rents are high and services low, public transit inadequate and gas prices insane, the city’s vitality is flagging.—
Dana Goodyear,
New Yorker,
4 June 2026
-
Lots of wires, lots of insane stunts.—
Entertainment Weekly,
Entertainment Weekly,
3 June 2026
Adjective
-
There is always the possibility that something absurd might occur — the equivalent of Neymar’s 2017 move to Paris Saint-Germain, for instance — but that’s extremely unlikely.—
Sebastian Stafford-Bloor,
New York Times,
27 May 2026
-
Ironically, the fears of two Republicans advancing were driven by Democratic data vendor Paul Mitchell, who built a prediction machine using absurd inputs like betting odds and polls that cannot account for things like rape allegations.—
Matt Fleming,
Oc Register,
27 May 2026
Adjective
-
Do crazy stuff on social media?—
Nathan Heller,
New Yorker,
1 June 2026
-
Just being connected with another human is crazy.—
David Canfield,
HollywoodReporter,
1 June 2026
Adjective
-
But his whole plan was really damaged by his idiotic attack against the leadership of Hamas in Qatar, because that caused Trump to pressure him to end the war.—
Isaac Chotiner,
New Yorker,
19 May 2026
-
Covering politics today is a grim dance between the vicious and the idiotic, between repulsion and despair.—
Megan McArdle,
Washington Post,
10 May 2026
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
“Crackbrained.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/crackbrained. Accessed 5 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
