Pronunciation: (fog'ē, fô'gē),[key] —adj.,-gi•er, -gi•est. 1. thick with or having much fog; misty: a foggy valley; a foggy spring day. 2. covered or enveloped as if with fog: a foggy mirror. 3. blurred or obscured as if by fog; not clear; vague: I haven't the foggiest notion of where she went. 4. bewildered; perplexed.
5. Photog.affected by fog.