humid
adj.adj. describing air that feels wet and sticky because it contains a lot of water. You usually feel this in hot weather or tropical places.
adj. containing a high concentration of water vapour. Often used predicatively after 'feel' or 'become' and typically describes weather conditions or indoor environments.
The air is very humid today.
The tropical climate is so humid that clothes never seem to dry properly on the line.
While the temperature was technically moderate, the exceptionally humid conditions made physical exertion feel significantly more taxing for the visiting athletes.
Borrowed from Old French humide, from Latin humidus (“moist”). Via Proto-Indo-European *wegʷ- (“wet”) related to English weaky.
Often modified by degree adverbs like 'very', 'extremely', or 'highly'.