View synonyms for filthy


[ fil-thee ]


, filth·i·er, filth·i·est.
  1. foul with, characterized by, or having the nature of filth; disgustingly or completely dirty.
  2. filthy language.

  3. contemptibly offensive, vile, or objectionable:

    to treat one's friends in a filthy manner.

  4. (of money) abundantly supplied (often followed by with ):

    They're filthy with money.

  5. Slang. (especially in sports) formidable: knocked down by a filthy right hook.

    a young rookie with a filthy curveball;

    knocked down by a filthy right hook.

verb (used with object)

, filth·ied, filth·y·ing.
  1. to make filthy; foul.


/ ˈfɪlθɪ /


  1. characterized by or full of filth; very dirty or obscene
  2. offensive or vicious

    that was a filthy trick to play

  3. informal.
    extremely unpleasant

    filthy weather


  1. extremely; disgustingly

    filthy rich

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Derived Forms

  • ˈfilthiness, noun
  • ˈfilthily, adverb

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Other Words From

  • filth·i·ly adverb
  • filth·i·ness noun

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Word History and Origins

Origin of filthy1

First recorded in 1350–1400; Middle English; filth, -y 1

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Idioms and Phrases

  1. filthy rich, outrageously wealthy; very rich.

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Synonym Study

See dirty.

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Example Sentences

The hornets also spent 94 percent less time chewing at filthy hive fronts.

They took a few souvenirs, and one filthy lieutenant ventured into the president’s dressing room and put on one of the president’s clean linen shirts.

Sly and The Family Stone are many people’s all-time favorite groups, so if you really want to smudge the filthy energy of 2020 away, play this song loudly and dance good vibes into your life and new year.

The rich and the famous are rarely at a loss for the appropriate materials to make a will, an act that has commonly extended for long stretches of the calendar to properly disperse filthy lucre and, on occasion, revenge.

From Ozy

While today’s natural language processing systems are more powerful than Tay, they suffer from a similar problem—if trained on filthy, controversial text, they learn to parrot the filth.

From Fortune

Suddenly, light flooded the room, and I found myself lying on a filthy orange sofa across the room from where my rape occurred.

At this point in his life, Denton has enough filthy lucre in his bank account to affect a certain lack of interest in the stuff.

You better take it before your filthy fraudulent self is bared to the nation.

Step too far off the beaten path and you could be faced with diseased rodents and filthy insects.

During the heated contest versus Big Piney, Kane tells us that even the referee told him, “You guys are nothing but filthy slobs.”

No escape from the steadily rising flood of letters and files,—none from the swarms of filthy flies.

This strip of land from ocean to ocean abounded in disease-breeding swamps and filthy habitations unfit for human beings.

Who answered, and said to them that stood before him, saying: Take away the filthy garments from him.

In my new prison, black and filthy to an extreme, I sadly missed the society of my little dumb friend.

Dot claimed that one of those filthy tabloids had offered her that much for them—and what was a poor working-girl to do?


Definitions and idiom definitions from Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.




filthfilthy lucre