What does cacophonous mean?
Cacophonous is an adjective describing sound that is harsh, discordant, and unpleasantly loud — a jumbled clash of noises rather than anything harmonious. A crowded street market, a flock of squawking birds, or an untuned orchestra all warming up at once can each be called cacophonous. The word derives from Greek roots: kakos meaning bad and phōnē meaning sound, the same roots that give us cacophony, its noun form, and euphony, its pleasant-sounding opposite. Cacophonous is most at home in literary, journalistic, and critical writing, where it lends a vivid, slightly formal edge to descriptions of overwhelming noise. It is almost always used negatively, conveying chaos or sensory assault rather than energy or richness. Writers reach for it precisely because it names a quality — discordance — that plainer words like loud or noisy fail to capture.
adjectiveHaving a harsh, jarring, discordant sound; unpleasantly loud and chaotic to the ear.
- Having or producing a harsh, discordant, unpleasantly loud mixture of sounds.
"The cacophonous blare of car horns filled the intersection during the blackout."
"The market was a cacophonous riot of shouting vendors, clanging pans, and bleating goats."
"From the nest came a cacophonous chorus as dozens of chicks clamored to be fed."
It's the opposite of 'euphonious' in every way — same Greek bones, but where one means beautiful sound, this one means your ears are under attack.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cacophonous
Cacophonous comes from the Greek kakos ('bad') and phōnē ('voice' or 'sound'), combined in the noun cacophony, from which the adjective is directly derived. The noun entered English via French in the mid-17th century, with the adjective following shortly after. It shares these Greek roots with euphony ('good sound'), symphony ('sounding together'), and phonetics.
Related word forms
How cacophonous is actually used
Formal-to-neutral register, common in literary and journalistic prose. Almost always negative or at least vividly descriptive of overwhelming noise; rarely used approvingly.
Easily confused with cacophonous
Euphonious describes pleasant, harmonious sound — the direct opposite of the harsh, discordant sound described by cacophonous.