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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
After being fired from SNL, Silverman scored a part playing a misunderstood filthy comedy writer on The Larry Sanders Show, Shandling’s classic send-up of the talk-show game. Stephen Rodrick, Rolling Stone, 18 May 2025 Who doesn’t rinse out (and ideally wash) a filthy blender filled with milky stuff? Erik Kain, Forbes.com, 7 Apr. 2025 At least 12 outside experts submitted testimony in what’s called the Dunsmore case, finding that San Diego jails are filthy and that workers regularly fail to follow best practices or department policies. Jeff McDonald, San Diego Union-Tribune, 9 May 2025 So The Righteous Gemstones went with the sentimental ending — or at least what counts for a sentimental ending in a series so committed to the filthiest possible turns of phrase. Scott Tobias, Vulture, 5 May 2025 See All Example Sentences for filthy
Recent Examples of Synonyms for filthy
Adjective
  • The obscene cost of healthcare has pushed manufacturers offshore and kept wages stagnant for decades.
    Ro Khanna, Twin Cities, 12 June 2025
  • In Tacoma, 35 miles to the south, Ted Bundy grew up near the American Smelting and Refining Co., which disgorged obscene levels of lead and arsenic into the air while netting millions for the Guggenheim dynasty before its 1986 closure.
    Hamilton Cain, Los Angeles Times, 5 June 2025
Adjective
  • The effort is big business with organized, managed, paid people doing the dirty work.
    Carolyn Rosenblatt, Forbes.com, 13 June 2025
  • Washing Machine Cleaner Your clothes aren’t the only things that get dirty in the laundry room.
    Lauren David, Southern Living, 13 June 2025
Adverb
  • No vaccine is perfect, the experts said, but the risk with the Covid vaccine is extremely small and the problems like a sore arm or a low-grade fever that some of his patients have experienced resolved quickly.
    Jen Christensen, CNN Money, 7 June 2025
  • Stef Stef is extremely mature and grounded in her investigation of the Goon Docks.
    Lisa Stardust, People.com, 7 June 2025
Adjective
  • One of them, a graduate student named Hailey, who had the kind of vulgar beauty of fecundity, duly fell pregnant.
    Yiyun Li, New Yorker, 15 June 2025
  • Dem rep's vulgar demand to ICE officers leads to calls to expel her from Congress MAJOR HEADLINES 'NEVER SEEN HER' – AOC, progressives ripped for ignoring 'Red Light district' as prostitution, filthy streets return.
    , FOXNews.com, 9 June 2025
Adjective
  • If soil clumps fall apart between your fingers or the texture is dusty, the soil is too dry and more water is needed.
    Heather Zidack, Hartford Courant, 7 June 2025
  • Resilience carried a rover with a shovel to gather lunar dirt as well as a Swedish artist's toy-size red house for placement on the moon's dusty surface.
    Arkansas Online, Arkansas Online, 6 June 2025
Adverb
  • Remember to look high and low, scrutinizing not just eye-level shelves but also the very top ledges and the floor beneath hanging clothes.
    Nicole Letts, Southern Living, 7 June 2025
  • The restaurant itself is long gone and most of the area looks very different, having been rebuilt after the bombing during the Second World War, but there’s an obelisk marking the spot just a few yards from Odeonsplatz square, upon which the club’s founding document is mounted.
    Sebastian Stafford-Bloor, New York Times, 7 June 2025
Adverb
  • One dog’s late-night cravings led him on a five-mile (incredibly relatable) journey.
    Rachel McRady, People.com, 13 June 2025
  • After four successful seasons of Godfather of Harlem — a true cultural phenomenon — moving into producing and creating new shows with him felt incredibly natural and organic.
    Tony Maglio, HollywoodReporter, 13 June 2025
Adjective
  • And some erratic vibrations were detected at points last week as the stark outperformance of year-to-date laggards over the top 2025 performers prompted some comparisons to the nasty momentum-stock reversal of February and March that upset the market well before the tariff panic.
    Michael Santoli, CNBC, 14 June 2025
  • She quickly gets embroiled in a nasty war of blackmail and stalking, and with the help of an unscrupulous life coach, matters escalate way too far.
    K. Thor Jensen, PC Magazine, 13 June 2025

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Cite this Entry

“Filthy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/filthy. Accessed 18 Jun. 2025.

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