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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 nasty That reunion would potentially be messy, and lead to some nasty name calling, but professional golf is better when all of the names are concentrated in the same tournament rather than spread out over two leagues. Fort Worth Star-Telegram, 15 Aug. 2025 Whereas the Star Wars sequels woefully misused the actor's talents, this movie puts them center stage, playing one of the teen hoodlums who join forces with their victim to fight off nasty, otherworldly invaders. Chris Snellgrove, EW.com, 12 Aug. 2025 Things could be reversed if prompt actions are taken to get vaccination rates back up again before the different nasty microbes can spread too far in the U.S. population. Bruce Y. Lee, Forbes.com, 10 Aug. 2025 The rest of Donetsk – principally the towns of Kramatorsk and Sloviansk – is a much nastier prospect. Nick Paton Walsh, CNN Money, 9 Aug. 2025 See All Example Sentences for nasty
Recent Examples of Synonyms for nasty
Adjective
  • Cleaning your garbage can is dirty work, but regular scrubbing will keep odors at bay and bugs away.
    Cody Godwin, USA Today, 24 Aug. 2025
  • From day one, The Whispers was about Drill, an alien force that was using children to do its dirty work.
    James Mercadante, EW.com, 22 Aug. 2025
Adjective
  • This obviously created some hard feelings and things got very ugly.
    R. Eric Thomas, Chicago Tribune, 26 Aug. 2025
  • The stan fighting quickly turned ugly; a fan posted a racist meme of Huda as the police officer who murdered George Floyd, with Olandria’s face pasted on Floyd’s.
    Alejandra Gularte, Vulture, 26 Aug. 2025
Adjective
  • There was also a subplot about Derek going through a painful divorce.
    Rob Reiner, New Yorker, 27 Aug. 2025
  • The advisory underscored that high temperatures could trigger a spectrum of medical problems—from painful muscle cramps to life-threatening heat stroke—especially among sensitive groups.
    Anna Skinner, MSNBC Newsweek, 26 Aug. 2025
Adjective
  • Part of that obscene number is the Never Say Die Ladies Turf Sprint.
    Danny Brewer, Forbes.com, 24 Aug. 2025
  • Brooklyn prosecutors charged him with misdemeanor assault, as well as menacing, reckless endangerment, possession of obscene material, interference with a professional sporting event, weapons possession and other charges, officials said.
    Thomas Tracy, New York Daily News, 21 Aug. 2025
Adjective
  • Here is another example from my work: a luxury brand facing daily phishing attacks receives real-time alerts with direct links to malicious sites, allowing their legal team to act immediately.
    Dima Raketa, Forbes.com, 27 Aug. 2025
  • Whether for malicious purposes or simply research, someone appears to be using OpenAI’s open-source model for ransomware attacks, according to antivirus company ESET.
    PC Magazine, PC Magazine, 26 Aug. 2025
Adjective
  • Sheckler and Kells have used the parallels in their turbulent journeys in the spotlight to lean on one another, making their bond stronger over the years.
    Michael Saponara, Billboard, 14 Aug. 2025
  • The two were married in 2012, and in the 13 years that followed, Krein was spotted from time to time with the powerful political family as his father-in-law navigated a presidential campaign and turbulent term in the White House.
    Kyler Alvord, People.com, 13 Aug. 2025
Adjective
  • While the exterior appears to be filthy, images from inside appear to show a white substance covering the steering wheel, dashboard, center console and other parts of the interior.
    Michael Ruiz, FOXNews.com, 23 Aug. 2025
  • Trump has repeatedly described some of the nation's largest cities, run by Democrats, with Black mayors and majority-minority populations, as dangerous and filthy.
    Martha McHardy, MSNBC Newsweek, 23 Aug. 2025
Adjective
  • A couple who had moved into a new apartment a couple of hours earlier got an unpleasant surprise after returning from a celebratory dinner.
    Jack Beresford, MSNBC Newsweek, 23 Aug. 2025
  • There are many financial benefits to property ownership, but that also means bills, repairs, maintenance and a number of other unpleasant surprises.
    Steve Jahnke, Kansas City Star, 21 Aug. 2025

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Cite this Entry

“Nasty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nasty. Accessed 2 Sep. 2025.

More from Merriam-Webster on nasty

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