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

Spring brings damp, foggy conditions, so pack sturdy shoes with grip, warm layers, and a rain shell. —Alexandra Gillespie, Outside, 6 Mar. 2026

The morning hours will be foggy, with partly cloudy afternoon skies. —Ron Smiley, CBS News, 6 Mar. 2026

Never mind the 37 countries, 103 destinations and five continents that passengers aboard the Azamara Quest will cover over 188 nights, from a January departure in foggy San Francisco to a July arrival in cloggy Copenhagen. —David Dickstein, Oc Register, 4 Mar. 2026

My crystal ball is a little foggy as to the future of tropical trees after such a hard freeze. —Tom MacCubbin, The Orlando Sentinel, 28 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