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adjective

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Synonym Chooser

How does the adjective nasty differ from other similar words?

Some common synonyms of nasty are dirty, filthy, foul, and squalid. While all these words mean "conspicuously unclean or impure," 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

When is dirty a more appropriate choice than nasty?

The words dirty and nasty are synonyms, but do differ in nuance. Specifically, 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 could filthy be used to replace nasty?

Although the words filthy and nasty have much in common, 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 would foul be a good substitute for nasty?

While in some cases nearly identical to nasty, 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

When might squalid be a better fit than nasty?

In some situations, the words squalid and nasty are roughly equivalent. However, 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 nastiness
Adjective
Such an outbreak is not particularly surprising; the reason the vast majority of milk is pasteurized (heated briefly to kill germs) is because milk can easily pick up nasty pathogens in the farmyard that can cause severe illnesses, particularly in children. Beth Mole, ArsTechnica, 29 July 2025 The movie is nasty and cynical—and also eerily accurate in its rendering of the digital reality of pandemic life. Shirley Li, The Atlantic, 18 July 2025 For example, wildfires can not only cause direct injury and damage to people and property but can also spew all sorts of nasty stuff into the air. Bruce Y. Lee, Forbes.com, 19 July 2025 Morton signed a one-year, $15 million deal with the Orioles this past offseason as a starting pitcher who had established himself with 17 years of MLB experience and a nasty curveball. Said Bravo, CNN Money, 18 July 2025 See All Example Sentences for nastiness
Recent Examples of Synonyms for nastiness
Noun
  • Most action items die from forgetfulness, not malice.
    Ishaan Agarwal, Forbes.com, 21 July 2025
  • The incident was reported on July 11 at Fahey’s home where the two men from New York were arrested on voyeurism with malice, first-degree criminal trespassing and second-degree breach of peace charges.
    Justin Muszynski, Hartford Courant, 18 July 2025
Adjective
  • That version of Boldy — the skilled scorer not afraid to go to the dirty areas — had superstar qualities and scored some big-time goals.
    Michael Russo, New York Times, 31 July 2025
  • Another is to use one of the brand's sprays and spritz the dirty surface, wipe it down, then rinse with water.
    Maria Sabella, Better Homes & Gardens, 31 July 2025
Adjective
  • These are the kind of ugly games that sometimes get played when GMs and coaches grow apart and pressure builds on their job securities and livelihoods.
    Pat Leonard, Hartford Courant, 21 July 2025
  • In 1996, Cantor died, and Lutnick, after an ugly succession battle with Cantor’s widow, Iris, took control.
    Antonia Hitchens, New Yorker, 21 July 2025
Adjective
  • Higher temperatures can be too hot for a dog’s paw pads and, in some cases, can cause painful burns.
    Cody Godwin, USA Today, 22 July 2025
  • The tents are overrun by mosquitoes and other large insects, subjecting people to frequent and painful insect bites.
    Steve Bousquet, The Orlando Sentinel, 22 July 2025
Adjective
  • The law requires pornographic websites to verify users’ ages – for example by making users scan and upload their driver’s license – before granting access to content that is deemed obscene for minors but not adults.
    Meg Leta Jones, The Conversation, 27 June 2025
  • Lawsuit alleges 'obscene' government overreach Longo's lawsuit, filed in Chemung County, New York, names the county, the city of Elmira and several DEC officers as defendants.
    Jeanine Santucci, USA Today, 12 July 2025
Adjective
  • Attacks are now surging across the U.S., targeting citizens with malicious texts, emails and popups.
    Zak Doffman, Forbes.com, 22 July 2025
  • Habba was sued by Newark Mayor Ras Baraka for false arrest, malicious prosecution and defamation after his arrest during a protest an immigration detention center in Newark on May 9.
    Robert Alexander, MSNBC Newsweek, 21 July 2025
Adjective
  • Flying across the country alone with my infant was far less turbulent with the right preparation.
    Melissa Willets, Parents, 1 Aug. 2025
  • For Michelle, 28, knowing her long-term relationship was over—one that had started with a DM, spanned four years, and was turbulent in the way that made letting go feel impossible—came down to seeing him with someone else…in a video watched by over a million people.
    Morgan Sullivan, Vogue, 31 July 2025
Adjective
  • Indeed, the trio looked filthy, and one even had a red, watery eye.
    Alyce Collins, MSNBC Newsweek, 23 July 2025
  • Sharp has long been one of New York’s filthiest comedians.
    Jason P. Frank, Vulture, 22 July 2025

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Cite this Entry

“Nastiness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nastiness. Accessed 5 Aug. 2025.

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