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Definition of dirtynext
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dirty

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verb

dirty

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adverb

Synonym Chooser

How does the adjective dirty differ from other similar words?

Some common synonyms of dirty are filthy, foul, nasty, and squalid. While all these words mean "conspicuously unclean or impure," dirty emphasizes the presence of dirt more than an emotional reaction to it or, figuratively, stresses meanness or despicableness.

a dirty littered street
don't ask me to do your dirty work

When is it sensible to use filthy instead of dirty?

The words filthy and dirty are synonyms, but do differ in nuance. Specifically, filthy carries a strong suggestion of offensiveness and typically of gradually accumulated dirt that begrimes and besmears. Figuratively, it can also describe disgusting obscenity.

a stained greasy floor, utterly filthy
filthy street language

When could foul be used to replace dirty?

The meanings of foul and dirty largely overlap; however, foul implies extreme offensiveness and an accumulation of what is rotten or stinking; it can also describe, for example, loathsome behavior.

a foul-smelling open sewer
a foul story of lust and greed

How does the word nasty relate to other synonyms for dirty?

Nasty applies to what is actually foul or is repugnant to one expecting freshness, cleanliness, or sweetness; in practice, however, nasty is often weakened to the point of being no more than a synonym of unpleasant or disagreeable. When used figuratively, nasty implies a peculiarly offensive unpleasantness.

it's a nasty job to clean up after a sick cat
had a nasty fall
his answer gave her a nasty shock
a stand-up comedian known for nasty humor

Where would squalid be a reasonable alternative to dirty?

While the synonyms squalid and dirty are close in meaning, squalid adds to the idea of dirtiness and filth that of slovenly neglect. Distinctively, its figurative use implies sordidness as well as baseness and dirtiness.

squalid slums
engaged in a series of squalid affairs

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of dirty
Adjective
For dirtier pieces, dip a cotton swab into soapy water (using mild dish soap) and gently wipe the ring. Jamie Cuccinelli, Martha Stewart, 23 Feb. 2026 Even his mother wishes her son would get his hands a little dirtier. David Remnick, New Yorker, 23 Feb. 2026
Verb
Keep them in reserve as a sleep sock to ward off icy toes and prevent sweat and skin oils from dirtying your down sleeping bag. Adam Roy, Outside, 28 Dec. 2025 Garments can be dirtied again by the elements if air-dried outside. Mary Cornetta, Better Homes & Gardens, 20 Dec. 2025 See All Example Sentences for dirty
Recent Examples of Synonyms for dirty
Adjective
  • Kelli Bryant, 34, was facing three counts each of child abuse related to allegedly forcing her three children, a 15-year-old boy and a 13- and 12-year-old girl, to live in unbearable, filthy conditions in an apartment on Lydia Lane.
    Paula Wethington, CBS News, 25 Feb. 2026
  • Other parts of the ballpark, including the exterior concourse and entrances, were also impacted by the filthy leaks, which stunk to high heaven.
    Gary Phillips, Hartford Courant, 22 Feb. 2026
Adjective
  • His night ended amid a storm of laughing students and obscene gestures.
    Los Angeles Times, Los Angeles Times, 19 Feb. 2026
  • However, that approach might convince possible free agent targets (say Green’s Bay’s Malik Willis) to look elsewhere, unless the money Miami’s offering is obscene, and far exceeds another franchise.
    Omar Kelly, Miami Herald, 13 Feb. 2026
Adjective
  • Though the region of the Milky Way called the Galactic Center is expected to be replete with pulsars, spotting them is challenging because of how extreme, turbulent, and densely packed the heart of our galaxy is.
    Robert Lea, Space.com, 21 Feb. 2026
  • It’s been a turbulent few years for Ubisoft.
    Jennifer Maas, Variety, 20 Feb. 2026
Adjective
  • Aiden Robbins continued his phenomenal day with a solo home run off the foul pole in right field.
    David Eckert, Austin American Statesman, 21 Feb. 2026
  • The foul smell permeated the area, too.
    Gary Phillips, New York Daily News, 21 Feb. 2026
Adjective
  • Failing to check abatement expiration dates creates nasty surprises when incentives end.
    Allison Palmer Updated February 20, Kansas City Star, 20 Feb. 2026
  • The club’s record £125million signing suffered a nasty leg break away to Spurs in December.
    Caoimhe O'Neill, New York Times, 19 Feb. 2026
Adjective
  • What really matters is if the tech can be scaled, is energy-dense enough to complete, and can prove cheap at an industrial scale.
    Christopher McFadden, Interesting Engineering, 21 Feb. 2026
  • Although this pencil is the cheapest of the bunch, the formula lasts and lasts.
    Alanna Martine Kilkeary, Glamour, 20 Feb. 2026
Adjective
  • From fragmented records to corruptible datasets and the general noise across social media, agentic systems are facing a trust and truth crisis at the most fundamental level.
    Lawrence Wintermeyer, Forbes.com, 11 Sep. 2025
  • Iran prefers weak allies over strong ones, and corrupt and corruptible governments over ones that respond to their citizens’ needs.
    Graeme Wood, The Atlantic, 2 Sep. 2025
Verb
  • Worshippers arriving for the day's first prayers found the damage and a smoldering fire that spewed black smoke across the entrance of the Abu Bakr Al-Siddiq Mosque in the town of Tell, near Nablus, and stained the ornate doorway.
    AREF TUFAHA, Arkansas Online, 24 Feb. 2026
  • Don’t toss that scratched-up, questionably stained, borderline EPA Superfund site, 12-year-old cutting board just yet!
    Catherina Gioino, Fortune, 24 Feb. 2026

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Cite this Entry

“Dirty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dirty. Accessed 27 Feb. 2026.

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