Mistiest vs Foggiest - What's the difference?

As adjectives the difference between mistiest and foggiest

is that mistiest is superlative of misty while foggiest is superlative of foggy.

(head)

(misty)

(er)

With mist; foggy.

It’s a very misty morning this morning - I can’t see a thing!

(figuratively) With tears in the eyes.

''Her eyes grew misty the night her long-time friend passed away.

* misty-eyed

(head)

(foggy)

Moscow is the foggiest city I've ever been to.

(usually, used in the negative) Very unclear; only slightly known; very difficult to understand or begin.

I don't have the foggiest idea how to get to Piccadilly Circus on the Tube.

She wasn't going to get the foggiest notion about modern writing from those old books.

He asked me where she was going and I said "I don't have the foggiest ."