IPA: /ˈfɒɡləs/
KK: /ˈfɔɡləs/
Not having any fog; clear and unobstructed by mist or haze.
The view from the mountain was fogless, allowing us to see for miles.
Fogless → It is formed from "fog" (from Old English *fogga*, meaning a cloud of tiny water droplets in the air) and "-less" (meaning without). The word "fogless" means without fog or free from fog.
Think of being 'without' ('-less') a 'cloud of tiny water droplets' ('fog') — that's why fogless means free from fog.