as in psychotic
unable to think in a clear or sensible way
that dog's straight loco, just running around in circles all day long
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
as in to bother
to cause to go insane or as if insane
years of living alone had clearly locoed the old rancher
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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.
Recent Examples of loco
Ryu Spaeth, New Republic, 28 July 2017
Real investors survey the landscape and look for signs of a market gone loco.
—Andy Kessler, WSJ, 2 July 2017
See All Example Sentences for loco
Adjective
As one of my colleagues said, this was straight loco.
—Ryu Spaeth, New Republic, 28 July 2017
Real investors survey the landscape and look for signs of a market gone loco.
—Andy Kessler, WSJ, 2 July 2017
See All Example Sentences for loco
Recent Examples of Synonyms for loco
Adjective
-
The drugs brought on psychotic episodes that were destructive, and when his son was about 20, the family made the difficult decision to ask Sean to leave the house.—
Madeline Mitchell,
USA Today,
20 June 2026
-
In the second episode, Tom spends a night in the local inn, and ends up in a crawl space with the ghost of a psychotic killer clown.—
Rachel Syme,
New Yorker,
18 June 2026
Verb
-
Oh, and more often than not, nobody bothers to check whether the change intervention actually worked, or whether leaders improve their performance after all!—
Tomas Chamorro-Premuzic,
Forbes.com,
19 June 2026
-
The chest pain that had been bothering her finally let up.—
Tyler Quattrin,
Twin Cities,
19 June 2026
Adjective
-
Initially skeptical, Tom becomes increasingly paranoid after a sailor who got lost in the fog essentially goes mad, with his eyes turning white just before dying.—
Jennifer Ouellette,
ArsTechnica,
21 June 2026
-
Relative bargain Please do not be mad at me for relaying this insurance math.—
Jonathan Lansner,
Oc Register,
21 June 2026
Verb
-
The risk is that only a handful of clubs will be able to cough up those sums, unbalancing the market.—
Charlotte Harpur,
New York Times,
19 May 2026
-
The trouble was that this stance unbalanced him at home.—
Daniel Immerwahr,
New Yorker,
16 Mar. 2026
Adjective
-
That’s an insane thing to believe.—
Holly Gleason,
Los Angeles Times,
18 June 2026
-
And ultimately, the premise of the show is insane horror tropes are happening to boring, normal people.—
Emily Zemler,
Rolling Stone,
18 June 2026
Verb
-
Frank, moving, and just slightly deranged.—
Namara Smith,
New Yorker,
10 June 2026
-
Only sick, demented, or deranged people in the House or Senate could vote against THE SAVE AMERICA ACT.—
Dan Gooding,
MSNBC Newsweek,
31 Mar. 2026
Adjective
-
One imagines the narrator of the Proclaimers’ most maniacal hit undertaking their 500-mile journey with a double dose of Vyvanse.—
Spencer Kornhaber,
The Atlantic,
12 June 2026
-
Gilmore said before unleashing a maniacal laugh.—
Gary Phillips,
New York Daily News,
11 June 2026
Verb
-
The point guard Jose Alvarado, shirtless and crazed by joy, zoomed by, passing 250 Broadway.—
Vinson Cunningham,
New Yorker,
18 June 2026
-
In cities around the United States, Mexico and Canada, fan zones are popping up as a gathering place for the soccer-crazed and the soccer-curious to come and enjoy the Beautiful Game.—
Kyle Feldscher,
CNN Money,
11 June 2026
Cite this Entry
“Loco.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/loco. Accessed 24 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
