Dictionary.com
Thesaurus.com
Showing results for foggy. Search instead for unfoggy.
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

  • foggily adverb
  • fogginess noun
  • unfoggy adjective

Etymology

Origin of foggy

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

Growing up on his family’s East Contra Costa County farm in the 1960s, Dennis Baldocchi thought the whole world was foggy until a friend took him on a hike that climbed above it.

From The Wall Street Journal • Mar. 29, 2026

On a foggy winter morning captain Khetsopon Nopsiri led a six-strong Thai army patrol along dirt tracks through the forest, assault rifles at the ready.

From Barron's • Mar. 10, 2026

At least five people have been killed after a Mexican Navy plane crashed in foggy conditions near Galveston, Texas on Monday while transporting a child burns victim.

From BBC • Dec. 23, 2025

After making 11 changes for the League Cup quarter-final win at third-tier Cardiff on Tuesday, Maresca reverted to his senior stars, but they made a dismal start on foggy Tyneside.

From Barron's • Dec. 20, 2025

Though the world became foggy around the edges, she yanked Damaris from its skull.

From "Throne of Glass" by Sarah J. Maas