Of the nature of fog; affected by, characterized by, or prone to fog. Also (and earliest) in figurative use. Cf. fog, n.2 1.

Cloudy, foggy, hazy.

Misty, foggy.

Foggy, wintry.

English regional (northern). Of the weather: wet, rainy; (also) foggy. Cf. soft, adj. 4a(b). Obsolete.

dialect. Thick, foggy.

Of mist, fog, smoke, etc.: Having the component particles densely aggregated, so as to intercept or hinder vision. Hence of the weather, etc…