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Synonyms

murky

American  
[mur-kee] / ˈmɜr ki /
Sometimes mirky

adjective

murkier, murkiest
  1. dark, gloomy, and cheerless.

    Antonyms:
    cheery, bright
  2. obscure or thick with mist, haze, etc., as the air.

    Synonyms:
    opaque, obscure, indefinite, hazy, confusing, hazy, misty, lowering, cloudy
    Antonyms:
    clear
  3. (of liquid) not clear; cloudy with or as if with sediment.

    Antonyms:
    transparent, pellucid, limpid, clear
  4. not clearly expressed; vague; unclear; confused.

    a murky statement.


murky British  
/ ˈmɜːkɪ /

adjective

  1. gloomy or dark

  2. cloudy or impenetrable as with smoke or fog

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See dark.

Other Word Forms

  • murkily adverb
  • murkiness noun

Etymology

Origin of murky

First recorded in 1300–50; Middle English mirky; see origin at murk, -y 1

Explanation

Something that's murky is dim, gloomy or hard to see through clearly. Think of the dark fog around a haunted house or the cloudy, muddy water in a swamp. Rarely used before the 17th century, this adjective came about by adding a "y" to the word murk. Murk itself evolved from myrkr, a Norse word for "darkness.” Things that are murky are unclear; that goes for murky, sediment-filled lakes, shady business deals, and arguments that don't seem to make any sense.

Keep Reading on Vocabulary.com

Vocabulary lists containing murky

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Arriving at their plane home, Cora and his gang—no longer moored to an underperforming roster and a murky front office—posed for a merry group photo.

From The Wall Street Journal • Apr. 27, 2026

Sarah Corden, the research and policy director for the farmer-led watchdog organization Farm Action, said that the disproportionate aid payments and murky framework are “fairly typical,” but called the rollout “problematic.”

From Salon • Apr. 25, 2026

Even as cease-fire details remain murky, noted strategist Tom Lee says the bottom has now been set for the U.S. stock market.

From The Wall Street Journal • Apr. 9, 2026

The price of oil remains elevated, despite peace talk reports, which suggests that issues around the control of the Strait of Hormuz remain murky at best.

From Barron's • Apr. 1, 2026

The murky visibility was making it nearly impossible for rookie coast guardsman John Cullen to do his job.

From Nazi Saboteurs by Samantha Seiple