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Synonyms

foggy

American  
[fog-ee, faw-gee] / ˈfɒg i, ˈfɔ gi /

adjective

foggier, foggiest
  1. thick with or having much fog; misty.

    a foggy valley;

    a foggy spring day.

  2. covered or enveloped as if with fog.

    a foggy mirror.

  3. (of thinking, ideas, etc.) dim or unclear as if obscured by fog; vague.

    I haven't the foggiest notion of where she went.

    Synonyms:
    muddleheaded, muddled, fuzzy, befuddled
  4. bewildered; confused.

    Difficulties with memory, concentration, attention, and fatigue left me feeling foggy and muddled much of the time.

  5. Photography. affected by fog.


foggy British  
/ ˈfɒɡɪ /

adjective

  1. thick with fog

  2. obscure or confused

  3. another word for fogged

  4. no idea whatsoever

    I haven't the foggiest

"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

Other Word Forms

Etymology

Origin of foggy

First recorded in 1520–30; fog 2 + -y 1; original sense was “marshy, thick, murky”

Explanation

Something that's foggy is cloudy or murky, filled with fog. A foggy view is blurred and indistinct, just like a foggy mind. Driving on a foggy road can be tricky, since it's more or less like driving inside a cloud. When the inside of your head feels this way — blurry, clouded, and vague — you can also used foggy in a figurative way: "Her memory grew foggy as the years went by." Experts aren't sure whether foggy or fog came first, but in either case they suspect a Scandinavian root.

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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.

We knew in Season 1 when Foggy was killed that Vanessa was going to be the cost for Fisk.

From Los Angeles Times • May 6, 2026

Foggy skies have shrouded parts of Tyne and Wear, while Cumbria and County Durham basked in sunshine.

From BBC • Apr. 26, 2026

He spends little of his time at the State Department’s headquarters in Foggy Bottom, instead working out of the White House within arm’s reach of the president.

From The Wall Street Journal • Jan. 7, 2026

Taiwanese film "A Foggy Tale" set during the island's "White Terror" political purges decades ago leads the race with 11 nods, including best film, best director, best actor and best actress.

From Barron's • Nov. 22, 2025

Foggy, scuffed-up windows offer limited views onto the dim platform.

From "Internment" by Samira Ahmed

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