LOUSE UP Synonyms: 80 Similar and Opposite Words

louse up

verb

Definition of louse up next

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

Chip stocks, however, stumbled; bitcoin is hovering at its weakest since the war began, private credit is throwing off sparks again — and a flesh-eating parasite has turned up in Texas.

— Anniek Bao, CNBC, 5 June 2026
The goal of the game is to land the stunt successfully without stumbling.

— Skyler Caruso, PEOPLE, 4 June 2026