If it's hazy, it's definitely not clear — there's fog, mist, smoke or something like that blurring the view.

Hazy usually describes a sky that's fogged over or otherwise unclear. But if you're feeling a little uncertain or unsure about something, with only a bleary outline in your mind, you could say you're a bit hazy on the details.

Definitions of hazy

adj filled or abounding with fog or mist

brumous, foggy, misty
full of or covered with clouds

adj indistinct or hazy in outline

bleary, blurred, blurry, foggy, fuzzy, muzzy
not clearly defined or easy to perceive or understand

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