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big mouth

ADJECTIVE

obnoxious

Synonyms

STRONGEST

abhorrent annoying disgusting hateful loathsome nasty objectionable reprehensible rotten unpleasant

WEAK

abominable awful beastly detestable disagreeable dislikable displeasing foul gross hateable heel horrid insufferable invidious mean nauseating odious off-color ornery pain in the neck pesky pestiferous pill repellent repugnant revolting sickening stinking

Antonyms

STRONGEST

agreeable decent friendly good great kind lovable moral nice pleasant pleasing welcome wonderful

WEAK

delightful likeable soft

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His big mouth got him into trouble with an IPO before.

From The Wall Street Journal • Apr. 10, 2026

But it’s not controversial to say that Wilhelm’s big mouth had a tendency to make things worse.

From Salon • Mar. 15, 2026

“I looked back and then saw this big mouth grabbing onto my board.”

From Los Angeles Times • Jun. 3, 2025

“He’s got a big mouth, he’s not a nice person.”

From Seattle Times • May 17, 2024

The first thing she was going to teach Agnes Stokes was when to keep her big mouth shut.

From "The Great Gilly Hopkins" by Katherine Paterson