dissonance

American  

[dis-uh-nuhns] / ˈdɪs ə nəns /

noun

dissonances plural

1. inharmonious or harsh sound; discord; cacophony.

2. Music.

   1. a simultaneous combination of tones conventionally accepted as being in a state of unrest and needing completion.

   2. an unresolved, discordant chord or interval.

3. disagreement or incongruity.

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dissonance British  

/ ˈdɪsənəns /

noun

1. a discordant combination of sounds

2. lack of agreement or consistency

3. music

   1. a sensation commonly associated with all intervals of the second and seventh, all diminished and augmented intervals, and all chords based on these intervals Compare consonance

   2. an interval or chord of this kind

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Usage

What does dissonance mean? Dissonance is harsh, inharmonious noise—cacophony. It can also refer to stark disagreement or lack of consistency. In both cases, a close synonym is discord. In the context of music, the word dissonance is used in a specific way to refer to a combination of sounds thought to be inharmonious (often ones intentionally composed to be so). It can also refer to a chord or interval that features such disharmony. In music and in general, dissonance is the opposite of consonance, which means harmony, agreement, or accord. In psychology, the term cognitive dissonance refers to the unease a person feels when they have two or more contradictory or incompatible beliefs. An adjective form of dissonance is dissonant. Example: Leaders in both factions of the party promised harmony, but so far there has been nothing but dissonance and constant arguing.

Other Word Forms

Noun Inflected Forms

• dissonances
  plural

Etymology

Origin of dissonance

1565–75; < Late Latin dissonantia, equivalent to disson- ( see dissonant) + -antia -ance

Explanation

Disagreeable sounds can be called dissonance. You know it's dissonance if you have the strong desire to cover your ears with your hands. Racket, noise, dissonance — all can describe sounds that are not pleasant. While some musicians purposely add a little dissonance into their melodies to create an unexpected sound, others, like someone who just started drum lessons, creates dissonance by accident. Dissonance can also be a conflict between people or opinions, like the dissonance you feel when you want to do something but your parents say "no."

Example Sentences

See Examples For:

dissonance dissonances

And she goes further, delivering the word “sorry” with oddly pleasing dissonance at one point and, at another, extending the word “no” to suggest both desperation and humor.

From The Wall Street Journal ● Jul. 11, 2026

In a moment when AI and digital technology allows for on-demand perfection, there’s a creeping thrill to the possibility of flaws and dissonance.

From Los Angeles Times ● Apr. 26, 2026

As if this wasn’t ominous enough, the latest BofA Securities fund-manager’s survey shows that Wall Street is, once again, experiencing severe cognitive dissonance: It is simultaneously worried about the market, but afraid to sell.

From MarketWatch ● Apr. 14, 2026

In trying to disassociate herself from the scandal, Melania’s lack of acknowledgment of her husband’s ties to Epstein stands out as a confusing, but increasingly familiar, bit of cognitive dissonance.

From Slate ● Apr. 10, 2026

Of course, if there are problems with tuning, the notes will not sound good together, but this is not what consonance and dissonance are about.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

The man who created “The Rite of Spring”—a ballet whose pounding dissonances and unconventional rhythms caused pandemonium at its 1913 Paris premiere—now insisted that the bolder the creative ambition, the tighter the frame must be.

From The Wall Street Journal ● May 11, 2026

George Lewis’s recent chamber and orchestral scores have been action-packed thrill rides, full of lovingly crafted dissonances and exciting collisions of rhythmic contour.

From New York Times ● Nov. 30, 2023

The duel with the guitarist was remarkable, with the two of them first trading, then meshing into some dissonances that were downright avant-garde.

From Washington Post ● Jun. 11, 2022

Everything about it, from the spare, enveloping details of Grant Major’s production design to the nerve-shredding dissonances of Jonny Greenwood’s score, directs our focus inward.”

From Los Angeles Times ● Feb. 8, 2022

As the music, enlivened by unscored dissonances, swelled to a raucous climax, she gripped the wooden sides of her chair, closed her eyes.

From "Atonement" by Ian McEwan

Related Words

• discord
• discrepancy
• disparity
• dissension
• incongruity