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loudmouth

American  
[loud-mouth] / ˈlaʊdˌmaʊθ /

noun

plural

loudmouths

  1. a loudmouthed person.

loudmouth British  
/ ˈlaʊdˌmaʊðd, ˈlaʊdˌmaʊθ, -ˌmaʊθt /

noun

  1. a person who brags or talks too loudly

  2. a person who is gossipy or tactless

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • loudmouthed adjective

Etymology

Origin of loudmouth

First recorded in 1660–70; loud + mouth

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.

Not only did its first installments change directors and tones, they even radically changed Hunt’s personality from a loudmouth to a playboy to a devoted husband.

From Los Angeles Times • May 16, 2025

“It gives more gravitas than some architect loudmouth in Seattle,” said Eliason, who sits on the center’s board.

From Slate • Feb. 28, 2025

Of course he's always been an ignorant loudmouth, but you could largely follow the dumb things he was trying to say.

From Salon • Mar. 6, 2024

For others, it makes her a loudmouth irritant.

From BBC • Feb. 14, 2024

About six months after I discovered the hidden message, this loudmouth MIT freshman found it too.

From "Ready Player One: A Novel" by Ernest Cline

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.