1
as in fumbling
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 screwing up
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
Recent Examples of Synonyms for lousing up
Verb
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My first few hours with the EM11 NL were marked by overshooting links, fumbling through simple selections, and occasionally wondering why anyone would voluntarily use a vertical mouse.—
Sascha Brodsky,
PC Magazine,
21 June 2026 -
Bennett is concerned, for instance, that Hong could win her primary and then be defeated in November by Republican Tom Tiffany, fumbling the governorship of a swing state into the hands of a far-right Freedom Caucus member who dabbled in 2020 election conspiracy theories.—
Will Lennon,
ABC News,
16 June 2026
Verb
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Myers nails the realistic teen who is a far cry from the unflappable Nancy Drew, screwing up plenty and often terrified of what she's gotten herself into.—
Kevin Jacobsen,
Entertainment Weekly,
22 May 2026
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First of all, don’t hide misdeeds and screwups, which comes naturally by not committing misdeeds and not screwing up.—
Eleanor Dearman,
Fort Worth Star-Telegram,
14 May 2026
Verb
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Bryan’s stumbling responses, under questioning from the legendary defense lawyer Clarence Darrow, left him humiliated.—
Michael Luo,
New Yorker,
14 June 2026
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The Grimm Brothers fairy tale follows a pair of famished siblings who get lost in the woods and entrapped by a child-eating witch, after stumbling upon her cottage made of candy.—
Patrick Ryan,
USA Today,
13 June 2026
Verb
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The Detroit Tigers are blowing a golden opportunity.—
David Troy OutKick,
FOXNews.com,
22 June 2026
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The Sox bullpen didn’t perform any better on Sunday, blowing leads in the ninth and 10th innings of a 5-4 loss to get swept in Detroit and finish 1-5 on the road trip.—
Paul Sullivan,
Chicago Tribune,
21 June 2026
Verb
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Arsenal are firmly in title-chasing mode and goal difference could still prove crucial, despite Manchester City slipping up against Everton on Monday.—
Abdul Rehman,
New York Times,
7 May 2026
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But knowing Olson’s proclivity for slipping up in hysterical fashion made the match that much more appealing.—
Ben Travers,
IndieWire,
7 May 2026
Verb
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Amid the memory shortage that's mucking up component prices globally, at least Qualcomm has some promising news for folks hoping to pay less for a daily driver.—
Florence Ion,
PC Magazine,
7 May 2026
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At least not Will Welch, GQ’s longstanding editor-in-chief and global editorial director, who was absolutely zen about the threat of an atmospheric river mucking up the mag’s Men of the Year celebration last night.—
Chris Gardner,
HollywoodReporter,
14 Nov. 2025
Verb
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Australia's Alessandro Circati was given a yellow card after tripping USA's Malik Tillman on the field.—
Andrew Greif,
NBC news,
20 June 2026
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The ban prohibits any item that could obstruct lifeguard views, overcrowd the beach, create tripping hazards, or hinder emergency responders.—
Olivia Young,
Travel + Leisure,
18 June 2026
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Cite this Entry
“Lousing up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lousing%20up. Accessed 23 Jun. 2026.
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