BOO-BOO Synonyms: 54 Similar and Opposite Words

boo-boo

noun

ˈbü-(ˌ)bü

Definition of boo-boo

as in mistake

an unintentional departure from truth or accuracy the president should not be making boo-boos in something as important as the State of the Union Address

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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 boo-boo Mike Trout presumably has witnessed every possible blooper, blunder and boo-boo in 16 seasons with the woeful Angels. — Steve Henson, Los Angeles Times, 3 June 2026 Be magnanimous and forgiving if others make a boo-boo. — Georgia Nicols, Denver Post, 27 Nov. 2025 When Cody trips and falls in the grass, his friends band together to comfort him and get him a bandage for his boo-boo. — Elisabeth Sherman, Parents, 9 May 2025 Junior Colson made a large rookie boo-boo, hitting a sliding Maye late. — Nick Canepa, San Diego Union-Tribune, 28 Dec. 2024 In his first start in two weeks, Marc-Andre Fleury survived a first-shift boo-boo and made 28 saves to improve to 4-0-1. — Michael Russo, The Athletic, 21 Nov. 2024 The Sun newspaper reports that Robinson made the boo-boo Friday morning during the BBC’s flagship current affairs radio show The Today Programme. — Caroline Frost, Deadline, 19 Oct. 2024

Recent Examples of Synonyms for boo-boo

Noun

In Kundassery’s view, the Democratic Party had made a critical mistake in the first few months of 2025.

— Benjamin Wallace-Wells, New Yorker, 18 Oct. 2026
To keep errors in check, each graph is shown to multiple volunteers, and their answers are combined so that individual mistakes average out, according to the project's website.

— Sharmila Kuthunur, Space.com, 18 Oct. 2026

Definition of mistake

Noun

Adam Hamilton Hamilton, the Democratic nominee, has characterized the war as a major foreign policy blunder.

— Matthew Kelly, Kansas City Star, 17 Oct. 2026
Holding her tongue is not Kate’s forte in general, and the severity of Todd’s avalanche of blunders in their meeting with the British foreign secretary tests the outer limits of her ability.

— Sophie Brookover, Vulture, 17 Oct. 2026

Definition of blunder

Noun

Someone who visits the malicious website directly may see a 404 error page instead of the fake installer.

— Kurt Knutsson, FOXNews.com, 17 Oct. 2026
The experts, who had all studied AI in academic settings, all brought up the ironies of the automation problem, where AI makes errors that humans can’t catch.

— Adam Clark Estes, Vox, 16 Oct. 2026

Definition of error

Browse Nearby Words

boobish

boo-boo

boo-boos

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“Boo-boo.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/boo-boo. Accessed 22 Oct. 2026.

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Synonyms of boo-boo

noun

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