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

The Miami Dolphins stumbled through a lopsided preseason loss to the New York Giants, sustained a key injury and continued sorting through roster questions before the season opener.

— Jeff Kleinman, Miami Herald, 24 Aug. 2026
Most injuries occurred as residents were tossed from beds or stumbled in the dark; trains and airport links were briefly disrupted, a Tokyo water main burst, and hundreds lost power.

— Mari Yamaguchi, Los Angeles Times, 23 Aug. 2026

Definition of stumble

Verb

As the trio grew up on Nebraska high school fields, the Huskers tripped and slipped to a 7-17 record during their senior seasons.

— Mitch Sherman, New York Times, 25 Aug. 2026
During competition, a number of humanoid robots have tripped, collapsed, burst into flames or slammed into safety barriers and then been stretchered off the track.

— Anna Coren, CBS News, 24 Aug. 2026

Definition of trip

Verb

Two exes alleged Watts blew past their boundaries to satisfy his own needs.

— Cheyenne Roundtree, Rolling Stone, 24 Aug. 2026
First and foremost is the peak load of 75 W and 12 V DC support, which can charge your phone in about 35 minutes if the wind is blowing at top speeds.

— Ameya Paleja, Interesting Engineering, 24 Aug. 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

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 27 Aug. 2026.

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Synonyms of louse up

verb

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