What is the opposite of clean?

Need antonyms for clean? Here's a list of words from our thesaurus that you can use instead.

Adjective
Opposite for free from dirt, marks, or stains
“He stood back for a moment to gasp at his dirty car before proceeding to wash it.”
Adjective
Opposite for hygienic or sanitary
“Do not handle the food if your hands are unhygienic.”
Adjective
Opposite for free from pollutants or impurities
“He dreaded having to return to the city with its polluted air.”
Adjective
(of sheet material e.g. paper) Opposite for in an unmarked condition
“The sheet of paper was blotchy with ink stains.”
Adjective
Opposite for having good morals
“Your past is no excuse for the immoral life you currently lead.”
Adjective
Opposite for free from guilt
“Steven was found guilty despite his constant protestations of innocence.”
Adjective
Opposite for performed according to the rules
“True to the traditions of leadership races, the candidates steeled themselves for a dirty fight.”
Adjective
(of a person) Opposite for free from the consumption of drugs or alcohol
“They tried to make Amanda go to rehab, but she refused and is still addicted.”
Adjective
(of an action) Opposite for performed well and with precision
“The amateur chef would completely massacre the piece of salmon with his sloppy knife strokes.”
Adjective
Opposite for simple, well-defined, and pleasing in shape
“The structure's design exudes a breath of complexity, using intricate lines and elaborate forms.”
Adjective
Opposite for that does not damage the environment
“We must encourage the continued reduction of the use of ecologically unfriendly energy for the benefit of future generations.”
Adjective
Opposite for complete and thorough
“It was only a partial victory for the party who had managed to secure several seats on the council.”
Adjective
(somewhat uncommon) Opposite for having no exceptions or restrictions
“He puts on a front, but his happiness is most certainly questionable.”
Adjective
Opposite for lacking in contents; empty
“I want a full plate of food right now because I am starving!”
Adjective
(of sound or color) Opposite for free from anything that dulls or dims
“Though his technique was superb, his guitar tone was distorted.”
Adjective
Opposite for being clear enough to read
“Jim's handwriting was illegible and difficult to read.”
Verb
Opposite for to make clean
“I always dirty my kitchen whenever I do some cooking.”
Verb
Opposite for to maintain one's household
“It only takes a few days for me to mess up my apartment.”
Verb
Opposite for to free of microorganisms, or from impurities
“Be sure to keep your wound clean so that you won't infect it.”
Adverb
Opposite for according to the rules
“If you want to take her on, then you should probably know that she fights dirty.”
Adverb
Opposite for used to emphasize the absoluteness of a given action or attribute
“I failed because I was only partially determined to accomplish my goals.”
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