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Synonyms

cacophonous

American  
[kuh-kof-uh-nuhs] / kəˈkɒf ə nəs /

adjective

  1. having a harsh or discordant sound.

    Synonyms:
    raucous, grating, strident, dissonant

cacophonous British  
/ kəˈkɒfənəs, ˌkækəˈfɒnɪk /

adjective

  1. jarring in sound; discordant; harsh

"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

Derived Forms

Etymology

Origin of cacophonous

From the Greek word kakóphōnos, dating back to 1790–1800. See caco-, -phone, -ous

Explanation

The adjective cacophonous describes loud, harsh sounds, like the cacophonous racket your brother and his band mates make while trying to learn how to play their instruments. To correctly pronounce cacophonous, accent the second syllable: "cuh-CAW-fuh-nus." It is related to the Greek words kakos, meaning "bad, evil," and phone, or "voice." You may feel like you're facing something evil if you’re bombarded by the cacophonous sounds of, say, political pundits yelling at one another, or the chaotic sounds of traffic and voices on a busy urban street. Cacophonous is the opposite of harmonious.

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Vocabulary lists containing cacophonous

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.

It’s already quite hot inside my shoebox apartment as the radiators clank away, drowning out my upstairs neighbor’s heavy footsteps with their cacophonous symphony.

From Salon • Feb. 7, 2026

In our cacophonous era, a library provides the solace of one author’s voice whispering into one reader’s ear.

From The Wall Street Journal • Oct. 12, 2025

It is, inarguably, a very different show than the one that debuted three years ago, with far fewer cacophonous kitchen scenes, and many more Chicago-appreciating exteriors.

From Los Angeles Times • Jun. 27, 2025

“EAT THE SUN,” they chanted together, while making cacophonous sounds with their instruments.

From Slate • Apr. 8, 2024

She approached the cacophonous sleeper, now on his side.

From "The Inquisitor's Tale" by Adam Gidwitz

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