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

While navigating a foggy, desolate Derry, Marge jumps behind the wheel of a milk truck, which may or may not be a nod to a pair of bizarre short stories collected in King's 1985 collection Skeleton Crew. —Randall Colburn, Entertainment Weekly, 15 Dec. 2025

For now, on a foggy Saturday in Yolo County, the sting of the loss persists. —Mark Billingsley, Sacbee.com, 14 Dec. 2025

Superintendent of Police Amit Bardar added that officials suspect the driver did not see the curve due to foggy conditions, per The Times of India. —Gabrielle Rockson, PEOPLE, 12 Dec. 2025

However, the sad truth is that those who have turned to traditional digital cameras and infrared sensors often face frustrations when visibility drops, especially when the weather is rainy, foggy, or even when darkness falls. —Malana Vantyler, USA Today, 10 Dec. 2025

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