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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
My father was living alone in that dark, filthy room like an old animal wallowing in its own excrement. Lee Chang-Dong, The New Yorker, 22 Dec. 2024 Down and out in Tinseltown, where white glistening snow turns to filthy slush. Matthew Jacobs, Vulture, 20 Dec. 2024 No one likes getting stuck behind a huge truck bellowing out filthy fumes. Ken Silverstein, Forbes, 19 Dec. 2024 Her material consists of tales of her bizarre upbringing, highly unconventional family, and filterless confessions of her time on this filthy planet. Matt Grobar, Deadline, 17 Dec. 2024 See all Example Sentences for filthy 
Recent Examples of Synonyms for filthy
Adjective
  • The high school student complainants said in the lawsuit that their families’ First Amendment rights have been violated by the law, which has a much broader definition of obscene material than the one defined by the U.S. Supreme Court in 1973.
    Nicole Blanchard, Idaho Statesman, 4 Feb. 2025
  • There might be behavioral symptoms that make someone cancel a flight at the last minute because of their panic or decide to take a train for an obscene number of hours to avoid flying.
    Kristen Rogers, CNN, 2 Feb. 2025
Adjective
  • Surrounded by plenty of enemies, political and otherwise, the husband and wife have no choice but to get their hands dirty in order to save their son.
    Borys Kit, The Hollywood Reporter, 10 Feb. 2025
  • Evans recommends carving out some time to complete tasks like returning dirty dishes or mugs from elsewhere in the house to the sink.
    Sarah Lyon, Southern Living, 9 Feb. 2025
Adverb
  • Prions are extremely persistent in the environment.
    Jim Robbin, Twin Cities, 7 Feb. 2025
  • Apple's testimony said: The IPA's existing powers are already extremely broad and pose a significant risk to the global availability of vitally important security technologies.
    Ars Technica, Ars Technica, 7 Feb. 2025
Adjective
  • The footage shows Caldwell calling the nearby Packers fans vulgar and sexist names, while taunting the man accompanying her with explicit gestures.
    Jackson Thompson, Fox News, 18 Jan. 2025
  • Michael Thomas Lewis, 55, let out multiple outbursts during his first appearance in court since he was arrested over the weekend and accused of making a series of vulgar, threatening online statements at Clark, the Indiana Fever superstar.
    Samira Puskar, NBC News, 14 Jan. 2025
Adjective
  • The landscape is filled with dusty mountains, misty horizons, and, sometimes, desolate and dead hills.
    Bilge Ebiri, Vulture, 31 Jan. 2025
  • The new formal name, Cherax pulverulentus, means dusty crayfish in Latin, in homage to the crustacean’s dotted exoskeleton.
    Margherita Bassi, Smithsonian Magazine, 15 Jan. 2025
Adverb
  • The very thought feels absurd—but then again, isn’t that the whole point of luxury?
    Lilah Ramzi, Vogue, 7 Feb. 2025
  • Toth shakes this up, soon designing very Breueresque tubular steel pieces.
    Anthony Paletta, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 7 Feb. 2025
Adverb
  • First and foremost, South Korea has high pollution levels, which cause skin sensitivity, and cica is known to be incredibly calming.
    Devon Abelman, Allure, 11 Feb. 2025
  • Keep: Two-motor powertrain The all-wheel drive version of the Buzz was incredibly useful during a typical late winter ice storm.
    Justin Gest, Newsweek, 11 Feb. 2025
Adjective
  • What follows is a twisted game of house where familiar familial relationships crumble and new ones take root like nasty black weeds.
    M.L. Rio, New York Times, 14 Feb. 2025
  • Eagles edge rusher Josh Sweat had the splashiest individual stat line with 2.5 sacks, but a crew of nasty defensive tackles wrought devastation versus the run and the pass.
    Tim Graham, The Athletic, 14 Feb. 2025

Thesaurus Entries Near filthy

Cite this Entry

“Filthy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/filthy. Accessed 20 Feb. 2025.

More from Merriam-Webster on filthy

Last Updated: - Updated example sentences
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