IPA: /ˈhjuː.mɪd.li/
KK: /ˈhjuːmɪdli/
In a way that is characterized by a lot of moisture in the air, making it feel warm and sticky.
The air felt heavy and humidly as we walked through the tropical forest.
Humidly → It is formed from "humid" (from Latin "humidus", meaning moist or damp) and "-ly" (a suffix used to form adverbs). The word "humidly" means in a manner that is moist or damp.
Think of 'humid' meaning moist, and remember that 'humidly' describes doing something in a moist manner.