1
as in to stumble
to make a mistake
everything is riding on this project, so we can't afford to louse up
Synonyms & Similar Words
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2
as in to fumble
to make or do (something) in a clumsy or unskillful way
I loused up the wallpapering job in the bedroom—the seams show too much
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of louse up
Which is to say that America’s most prominent vaccine skeptic could have the power to upend, derail, or otherwise louse up a cornerstone of public health.
—
Daniel Engber, The Atlantic, 20 Nov. 2024
Conversely, one of the easiest ways to louse up a team on draft day is to load up a team with players who aren’t going to produce at a level commensurate with when they were drafted.
—Gary Davenport, The Athletic, 5 Aug. 2024
Daniel Engber, The Atlantic, 20 Nov. 2024
Conversely, one of the easiest ways to louse up a team on draft day is to load up a team with players who aren’t going to produce at a level commensurate with when they were drafted.
—Gary Davenport, The Athletic, 5 Aug. 2024
Recent Examples of Synonyms for louse up
Verb
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The movie follows Rick Power (Rudd), a wedding band singer who stumbles into a late-night jam session with former boy band star Danny (Jonas) and reignites his passion for songwriting.—
Ethan Shanfeld,
Variety,
14 Mar. 2026
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Just a nibble on a leaf or petal can lead to rapid kidney damage with loss of appetite, vomiting, hypersalivation, lethargy and sometimes neurological signs such as stumbling, tremors and seizures.—
The Washington Post,
San Diego Union-Tribune,
14 Mar. 2026
Verb
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In a stunning blowout Friday night, KU fumbled its conference tournament semifinal against the Houston Cougars, losing 69-47.—
Kansas City Star,
Kansas City Star,
14 Mar. 2026
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This alone can shave valuable minutes off your screening and help you to breeze through the scanner instead of fumbling at the bins.—
Kayla Kitts,
Travel + Leisure,
13 Mar. 2026
Verb
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Less than a minute into the game, Wild defenseman Brock Faber went to the penalty box for tripping and the Rangers converted on the ensuing power play.—
Jess Myers,
Twin Cities,
15 Mar. 2026
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Nor is the scene in which Cory trips on mushrooms on Hollywood Boulevard (which is probably true of half the people walking there).—
Frank Scheck,
HollywoodReporter,
15 Mar. 2026
Verb
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Victor Wembanyama had 21 points and 13 rebounds, and the San Antonio Spurs overcame an early 14-point deficit before blowing most of a 24-point lead and recovering to hold off the Los Angeles Clippers 119-115 on Monday night.—
CBS News,
CBS News,
17 Mar. 2026
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When Italian thieves blew apart Knightsbridge, Prager could have fled.—
Jack Crosbie,
Rolling Stone,
17 Mar. 2026
Verb
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Other teams will be left sweating it out until Selection Sunday — wondering about their seedings, whether their bubbles burst or whether another team will slip up and provide them an opportunity.—
Grace Raynor,
New York Times,
9 Mar. 2026
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And hope the teams ahead of them slip up.—
Jordan McPherson,
Miami Herald,
28 Feb. 2026
Verb
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The Sens are going to lose their pick for nothing at all, because of how a GM their fans didn’t like screwed up a trade his team wasn’t even involved in.—
Sean McIndoe,
New York Times,
11 Mar. 2026
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And gun-safety groups say that anything that makes the rules more complicated and unclear could really screw up the system.—
Nina Totenberg,
NPR,
2 Mar. 2026
Verb
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The evening's historic tie almost gets totally ruined For only the seventh time in history, the Oscar vote ended in a tie.—
Kelly Lawler,
USA Today,
16 Mar. 2026
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However, for some, gambling is an addiction that can ruin lives and families.—
Don Sweeney,
Sacbee.com,
15 Mar. 2026
Verb
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Wild turkeys gobbled up Staten Island straphangers’ time on Monday, after a flock fouled up service on the Staten Island Railway.—
Evan Simko-Bednarski,
New York Daily News,
17 Mar. 2026
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Karaban almost had a costly turnover on an inbound play with 14 seconds left, but the Huskies fouled up three and Mulready split his free throw attempts, setting up the game-clinching freebies from the Huskies’ captain.—
Joe Arruda,
Hartford Courant,
15 Feb. 2026
Cite this Entry
“Louse up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/louse%20up. Accessed 19 Mar. 2026.
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