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Definition of filthinessnext
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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 filthiness
Adjective
That praise rings true more than a decade later thanks to joke after filthy joke, cameo after foul-mouthed cameo, scare after genuine scare. — Sara Netzley, Entertainment Weekly, 11 Sep. 2026 People were filthy in so many ways, so Mike really wrote that in. — Ben Travers, IndieWire, 20 Aug. 2026 While sinks can become filthy from soap splatters and dirty hands, toilets need cleaning for very different reasons. — Karen Brewer Grossman, Southern Living, 17 Aug. 2026 The game starts with a flashback 30 years ago to a feral, filthy Wolverine who’s living alone in the wilderness. — Jordan Moreau, Variety, 13 Aug. 2026 See All Example Sentences for filthiness
Recent Examples of Synonyms for filthiness
Noun
  • But Paddy’s isn’t Sudz, and the Gang’s efforts to soft-pedal their antics to be more in line with those mainstream bars devolved into typical Sunny-style hostility and off-putting grossness.
    — Dennis Perkins, Entertainment Weekly, 28 July 2026
  • All your Dad has to do is fill it and drink—the microfilter membrane will do the rest by removing chlorine odors, dirt, bacteria, and any other grossness floating around in there.
    — Francesca Krempa, Travel + Leisure, 11 June 2026
Noun
  • For Damien dirtiness brought him closer to godliness, the grime evidence of his graft.
    — Literary Hub, Literary Hub, 20 July 2026
  • That’s the dirtiness of rugs and pulling.
    — David Canfield, HollywoodReporter, 13 Apr. 2026
Noun
  • Lower courts upheld the ban, finding the veiled vulgarity of the phrase allows schools to ban it.
    — CBS News, CBS News, 6 Oct. 2026
  • The diaries—particularly in Julian Sachs’s unexpurgated version, which captures Pavese’s alternating earnestness, archness, and pungent vulgarity—pose something of a problem.
    — Max Norman, Harpers Magazine, 22 Sep. 2026
Noun
  • An earnest, has-a-costume-for-everything kind of guy, Daub is allergic to the greige and the dinge.
    — Sandra Upson, Wired, 18 Jan. 2021
Noun
  • The bleachy sunlight is just right, as is the shrugging acceptance that this town’s strivers must accept a fair amount of filth.
    — Amy Nicholson, Los Angeles Times, 7 Oct. 2026
  • Too many rodents, too much filth and too little sanitizer led inspectors to shut down a Miami ramen restaurant for a couple of days last week.
    — David J. Neal, Miami Herald, 2 Sep. 2026
Noun
  • Bleach is genuinely good at killing mildew and lifting the biological staining that makes white grout look gray.
    — Daley Quinn, Southern Living, 12 Sep. 2026
  • Dylan Gould, director of design at Cargo Workshop, says clients often have concerns about marble staining, etching, or not holding up well.
    — Helena Madden, Martha Stewart, 6 Sep. 2026
Noun
  • The Averys also lack the deep, metaphysical suggestiveness of the Gottliebs.
    — Sebastian Smee, The Atlantic, 27 Aug. 2026
  • The bucket quickly went viral for its not-safe-for-work suggestiveness.
    — Greta Cross, USA Today, 1 July 2026
Noun
  • The only other person in the 21st century who might’ve had as uncanny an ability to look beneath the sordidness and sorrow of red carpets and walks of fame to find truth and even poetry might be David Lynch.
    — Ryan Lattanzio, IndieWire, 23 July 2026
  • Fennell continues to have a gift for exposing the sordidness of money and power.
    — Amy Nicholson, Los Angeles Times, 11 Feb. 2026

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Cite this Entry

“Filthiness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/filthiness. Accessed 22 Oct. 2026.

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