emphasis If you say that you haven't the foggiest or you haven't the foggiest idea, you are emphasizing that you do not know something. I did not have the foggiest idea what he meant
indistinct or hazy in outline; "a landscape of blurred outlines"; "the trees were just blurry shapes"
When it is foggy, there is fog. Conditions were damp and foggy after morning sleet
Filled or abounding with fog, or watery exhalations; misty; as, a foggy atmosphere; a foggy morning
stunned or confused and slow to react (as from blows or drunkenness or exhaustion)