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

Look for wildflowers and endemic fauna on the Tomales Point Trail, which rambles for nearly 10 miles on this special, skinny peninsula, delivering gorgeous, foggy views of the Pacific Ocean. —Chelsee Lowe, Travel + Leisure, 18 June 2026

And from there, the details become even foggier, at least from the POV of the White House. —Tina Nguyen, The Verge, 17 June 2026

Your brain becomes foggy and every movement feels painfully slow. —Eva Steinwald, CNBC, 16 June 2026

Loftis has his own traumatic history with the town of Widow’s Bay, but remains skeptical until he is scratched by an ethereal creature on a foggy night. —Stephen Rodrick, Rolling Stone, 16 June 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