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Synonyms

rotten

American  
[rot-n] / ˈrɒt n /

adjective

rottener, rottenest
  1. decomposing or decaying; putrid; tainted, foul, or bad-smelling.

    Synonyms:
    rank, fetid
    Antonyms:
    sound
  2. corrupt or morally offensive.

    Synonyms:
    immoral
    Antonyms:
    moral
  3. wretchedly bad, unpleasant, or unsatisfactory; miserable.

    a rotten piece of work; a rotten day at the office.

  4. contemptible; despicable.

    a rotten little liar; a rotten trick.

    Synonyms:
    treacherous, unwholesome, disgusting
  5. (of soil, rocks, etc.) soft, yielding, or friable as the result of decomposition.

  6. Australian Slang. drunk.


rotten British  
/ ˈrɒtən /

adjective

  1. affected with rot; decomposing, decaying, or putrid

  2. breaking up, esp through age or hard use; disintegrating

    rotten ironwork

  3. morally despicable or corrupt

  4. untrustworthy, disloyal, or treacherous

  5. informal unpleasant, unfortunate, or nasty

    rotten luck

    rotten weather

  6. informal unsatisfactory or poor

    rotten workmanship

  7. informal miserably unwell

  8. informal distressed, uncomfortable, and embarrassed

    I felt rotten when I told him to go

  9. (of rocks, soils, etc) soft and crumbling, esp as a result of weathering

  10. slang intoxicated; drunk

"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

adverb

  1. extremely; very much

    men fancy her rotten

"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

Etymology

Origin of rotten

1175–1225; Middle English roten < Old Norse rotinn, past participle of an unrecorded verb meaning “to rot”

Explanation

Use the adjective rotten to describe something that is decaying or decayed. If you are like most people, you occasionally have to throw out rotten food — sometimes, it's so nasty you can't even tell what the food was in its original form! The adjective rotten also describes something that is very poor in quality. If your car has a flat tire, your dog threw up on the carpet, and your boss yelled at you, you can say you are having "a rotten day." Another use for rotten is to describe something that is damaged by decay. Weather damage can cause boards to rot, so if you are working on an old house, you should especially watch out for rotten floor boards. You wouldn't want to fall through to the basement!

Keep Reading on Vocabulary.com

Vocabulary lists containing rotten

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.

See Examples For:

Moldy, bruised and rotten fruits and vegetables should also be avoided.

From Salon Jul. 20, 2026

"OpenAI's nascent hardware business now rests on the shakiest of foundations, rotten to its core by its illegal reliance on misappropriated trade secrets," the complaint said.

From Barron's Jul. 10, 2026

A plan for the growing smell of rotten food was also still being formulated, officials said.

From Los Angeles Times Jun. 26, 2026

Both KWN and Kehlani were rotten with the cold during the video shoot.

From BBC Jun. 26, 2026

“You knowhow we sometimes get an egg good and rotten so it makes a big stink?”

From "The Seven Wonders of Sassafras Springs" by Betty G. Birney

This is an illness, a mania, but seems more like something a writer might envy, which feels even rottener than envy usually does, because Gould was a toothless madman who slept in the street.

From The New Yorker Jul. 27, 2015

Back in England, he yanked some young offenders out of the regular prisons, moved them away from the older, rottener apples to a Kentish village called Borstal.

From Time Magazine Archive

The wooden bridge is more askew, rottener than I remember.

From "Cat's Eye" by Margaret Atwood

England wasn't a bit rotten—or, at least, no rottener than she ever was, only the rottenness was all dragged into the limelight.

From There was a King in Egypt by Norma Lorimer

If a light rig like that shakes the bricks loose, the old thing must be rottener than it looks!

From Sure Pop and the Safety Scouts by Roy Rutherford Bailey

Oliver’s efforts to save Manny require the kind of ruthless cunning he learned earlier from the rottenest of rotten cops.

From Washington Post Feb. 2, 2018

“He is very, very dead. The rottenest of the rotten. . . . But hey, we have his plays, so voilà.”

From The New Yorker Aug. 12, 2014

“The rottenest piece of land there is,” said Mick Elbert, a local car dealer who served on the golf association board.

From New York Times Dec. 31, 2011

Made from the juiciest of rotten apples, the rottenest of juicy maggots, and bits of skin and rags that fell into the barrel.

From The Guardian Jul. 22, 2010

“I got three of them. The rottenest eggs in Sassafras Springs.”

From "The Seven Wonders of Sassafras Springs" by Betty G. Birney

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