LOUSE UP Synonyms: 80 Similar and Opposite Words

louse up

verb

Definition of louse up

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

Relevance

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

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 louse up Maybe one party simply wants out for no apparent reason Anything can louse up the deal. — Lew Sichelman, Miami Herald, 28 May 2026 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

Recent Examples of Synonyms for louse up

Verb

But since then, Nosková has solidified while Sabalenka has stumbled, and the Czech has also gotten through some tough matches to reach this one.

— Ava Wallace, New York Times, 8 Sep. 2026
Byron Nelson stumbles again Normally an area power, Trophy Club Byron Nelson is off to a rocky start.

— Charles Baggarly, Fort Worth Star-Telegram, 5 Sep. 2026

Definition of stumble

Verb

After Jordan fumbled away a screen pass, Maiava later found Mosley for that 68-yard score.

— Ryan Kartje, Los Angeles Times, 5 Sep. 2026
Balogun didn’t hurt his stock or his public image by walking away from Everton, a club that fumbled its way through another transfer window.

— Paul Tenorio, New York Times, 4 Sep. 2026

Definition of fumble

Verb

An older man to my right tripped and took a face-first dive across the pavement, glasses flying off his face.

— Timothy Townsend, Rolling Stone, 11 Sep. 2026
Mizzou tripped Kansas 42-31 last season in Columbia, went 4-1 against the Jayhawks uninterrupted from 2007-11 at Arrowhead Stadium and also conquered KU 42-17 in 2006 at Memorial Stadium in Columbia.

— Gary Bedore, Kansas City Star, 11 Sep. 2026

Definition of trip

Verb

Scott Schaunaman, a Kansas City, Kansas, Fire Department spokesperson, said the contractor accidentally bored into a six-inch, high-pressure gas line from 150 feet away, blowing open a portion of 10th Street.

— Ben Wheeler, Kansas City Star, 14 Sep. 2026
Fourteen of those storms originated in the East Pacific, which, with two and a half months of the season still to come, will likely blow past its average seasonal storm total of 15.

— Mary Gilbert, CNN Money, 14 Sep. 2026

Definition of blow

Verb

The Iberians slipped up big time in their first match of the tournament, being shocked by Switzerland 1-0, bringing back ghosts of tournament failures past for Spanish fans.

— Patrick Sung Cuadrado, CNN Money, 14 July 2026
But for taxpayers with a solid compliance history who slip up once, automatically applying relief—instead of reserving it for those who know to ask—is a welcome change.

— Kelly Phillips Erb, Forbes.com, 11 July 2026

Definition of slip up

Verb

That doesn’t mean the Yankees screwed up in their process by trading for Stanton.

— Chris Kirschner, New York Times, 23 Aug. 2026
Every time a player screwed up, the coaching staff and his teammates received a text message, calling out both the infraction and the guilty party.

— Dana O’Neil, CNN Money, 14 Aug. 2026

Definition of screw up

Verb

In the end, though, neither an explosion nor a giant spill of fluid that could foul up waterways and the ocean occurred.

— Hannah Fry, Los Angeles Times, 27 May 2026
An incorrect connection or approach can foul up a line, damage a plane or cause an accident.

— Tara Copp The Washington Post, Arkansas Online, 25 May 2026

Definition of foul up

Verb

To me, that would ruin all of the progress baseball has made over the last five years.

— Assistant Sports Editor, Los Angeles Times, 14 Sep. 2026
My personal concern is especially based on the fact that their huge need for additional electricity generation could very well ruin our ability to reduce carbon emissions and avoid a climate crisis.

— Martin Kushler, Washington Post, 11 Sep. 2026

Definition of ruin

Browse Nearby Words

louses up

louse up

lousily

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“Louse up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/louse%20up. Accessed 16 Sep. 2026.

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Synonyms of louse up

verb

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