foggy

adjective

fog·​gy ˈfȯ-gē 

ˈfä-

foggier; foggiest

1

a

: filled or abounding with fog

a foggy valley

b

: covered or made opaque by moisture or grime

a foggy mirror

2

: blurred or obscured as if by fog

My memory is a little foggy.

I haven't the foggiest notion. [=I have no idea]

foggily

ˈfȯ-gə-lē 

ˈfä-

adverb

fogginess

ˈfȯ-gē-nəs 

ˈfä-

noun

Synonyms of foggy

• hazy
• misty
• rainy
• murky
• clouded

Examples of foggy in a Sentence

I don't remember what her name was—my memory is a little foggy.

it's pretty foggy outside, so be careful driving home

Recent Examples on the Web

Groggy, foggy-headed, dragging through the afternoon? —Hunter Boyce, AJC.com, 11 Feb. 2026

Fennell and Sandgren’s compositions are frequently awe-inspiring, from a sequence that sees Cathy sweeping across the moors in her wedding dress to the eventual foggy reunion between the lovers that slowly pulls Elordi into relief while a searching Cathy searches for clarity. —Kate Erbland, IndieWire, 9 Feb. 2026

Use low-beam headlights if coming across any foggy conditions tomorrow morning during the commute. —Lauren Bostwick, CBS News, 8 Feb. 2026

American skiing star Lindsey Vonn shared a photo ahead of her training session for the downhill event this afternoon, which has been delayed by foggy conditions. —Andrew Greif, NBC news, 6 Feb. 2026

Word History

Etymology

earlier, spongy, marshy, thick, probably from fog second growth of grass, from Middle English fogge

First Known Use

15th century, in the meaning defined at sense 1a

Rhymes for foggy

• boggy
• doggie
• doggy
• groggy
• soggy
• tragi
• yagi

Kids Definition

foggy

adjective

fog·​gy ˈfȯg-ē 

ˈfäg-

foggier; foggiest

1

: filled with fog

2

: vague sense 2

foggily

-ə-lē 

adverb

fogginess

-ē-nəs 

noun