thick with or having much fog; misty

a foggy valley; a foggy spring day.

covered or enveloped as if with fog

a foggy mirror.

blurred or obscured as if by fog; not clear; vague

I haven't the foggiest notion of where she went.

bewildered; perplexed.

Photography . affected by fog.

adjective

clear

adjective

blurred , ceiling zero , closed in , clouded , cloudy , dark , dim , filmy , fogged in , fuzzy , gray , indistinct , misty , murky , mushy , nebulous , pea-soupy , smazy , smoggy , socked in , soupy , unclear , vague , vaporous , vapory , zero-zero , blear , bleary , faint , hazy , indefinite , obscure , shadowy , undistinct , beclouded , brumous , confused , dense , dull , groggy , marshy , muddled , nubilous , overcast