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Definition of filthynext
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filthy

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adverb

Synonym Chooser

How does the adjective filthy differ from other similar words?

Some common synonyms of filthy are dirty, foul, nasty, and squalid. While all these words mean "conspicuously unclean or impure," 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 might dirty be a better fit than filthy?

In some situations, the words dirty and filthy are roughly equivalent. However, 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 would foul be a good substitute for filthy?

The words foul and filthy are synonyms, but do differ in nuance. Specifically, 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 is nasty related to other words for filthy?

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

In what contexts can squalid take the place of filthy?

The synonyms squalid and filthy are sometimes interchangeable, but 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 filthy
Adjective
In other words, Cunha’s job is to convince the Americans now running the federal government to give Brown’s motley crew of gender-benders, anti-Semites and filthy-rich legacies a good leaving alone. Howie Carr, Boston Herald, 24 Dec. 2025 Well, gather ‘round, ya filthy animals. Erin Jensen, USA Today, 28 Nov. 2025 Rosamund Pike, playing the spirit of loving filthy lucre over life itself, elevates a standard villain through the high timing of her theatrical hauteur. Owen Gleiberman, Variety, 11 Nov. 2025 The couple slept on a filthy mattress on the floor with their 4-year-old son, Stephano. Daniel Gonzalez, AZCentral.com, 6 Nov. 2025 See All Example Sentences for filthy
Recent Examples of Synonyms for filthy
Adjective
  • Not only are hospital CEOs paid obscene amounts of money and the hospitals are sitting on fat cash balances, but NewYork–Presbyterian is guilty of something even more grotesque.
    Voice of the People, New York Daily News, 27 Jan. 2026
  • Some made obscene gestures, and one held up a paper cursing the president.
    Josh Boak, Los Angeles Times, 21 Jan. 2026
Adjective
  • The women have frequently shared their custom dirty soda orders and helped catapult the once-niche drink, often guzzled from 44-ounce mega cups, into the spotlight.
    Brittany Anas, Denver Post, 27 Jan. 2026
  • If extremely dirty, they can be very briefly dunked into cold water and wiped dry.
    Cathy Thomas, Oc Register, 26 Jan. 2026
Adverb
  • Where these winds coincide with heavy snow, blizzard conditions are possible, with near-zero visibility and extremely dangerous travel, particularly along the Outer Banks of North Carolina and into southeast Virginia.
    Briana Waxman, CNN Money, 30 Jan. 2026
  • Therefore, telling the story in graphic form on behalf of Ukrainians themselves, explaining the preconditions for Russia’s attempts to erase Ukraine as a sovereign country and Ukrainians as an ethnic group, became extremely relevant.
    Literary Hub, Literary Hub, 29 Jan. 2026
Adjective
  • Although the Ripken card launched many conspiracy theories as to whether the inclusion of its vulgar phrase was truly a mistake or a Fleer marketing ploy, there is a long history of errors making it through quality control in sports card production.
    Tyler Holzhammer, New York Times, 6 Jan. 2026
  • The joke swap during last year's Christmas episode went to some particularly jaw-dropping places after Che made Jost read a vulgar joke about Johansson.
    Brendan Morrow, USA Today, 21 Dec. 2025
Adjective
  • The hotel’s contemporary concrete architecture acts as a bracing-yet-beautiful contrast to the dusty rock plateaus, while many of its minimalist guest rooms come with private plunge pools that look out to the horizon.
    Nicole Kliest, Vogue, 22 Jan. 2026
  • Windowsills get dusty really fast when dry air causes static electricity in your home.
    Brandee Gruener, Southern Living, 22 Jan. 2026
Adverb
  • Another very important component of any AI law is the jurisdictional scope.
    Lance Eliot, Forbes.com, 25 Jan. 2026
  • At the very least, legislatures need to address the impact of data centers and complete their work on the risks of AI bias.
    Krista Kafer, Denver Post, 25 Jan. 2026
Adjective
  • The dangers of some using modern technology to render false, realistic pornographic depictions of real individuals is just one of many concerns people are having in the age of artificial intelligence.
    Hannah Dailey, Billboard, 23 Jan. 2026
  • The legislation would allow individuals whose likeness has been used by AI to generate pornographic photos and videos without their consent to sue those responsible for generating or disseminating the content for upward of $150,000.
    Lauren Green, The Washington Examiner, 22 Jan. 2026
Adjective
  • The guest-only Chapel Club has a more plush, salon-like feel and there’s more than a hint of naughtiness with stained glass windows casting color onto the sensual artworks.
    Condé Nast, Condé Nast Traveler, 23 Jan. 2026
  • How To Remove Types Of Mattress Stains Step-By-Step Vacuum the mattress and stained area.
    Ashlyn Needham, Southern Living, 20 Jan. 2026

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Cite this Entry

“Filthy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/filthy. Accessed 30 Jan. 2026.

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