1. adjective humid, close, damp, sticky, moist, oppressive, stuffy, sultry, clammy It was muggy and overcast. humid, soggy, sticky, sultry. The American Heritage® Roget's Thesaurus.
Like the heat index, muggy is a "feels-like" condition, except it has to do more with how "breathable" the air feels than how hot it feels. The muggier the weather, the less chance you'll feel cool because of decreased evaporation rates, which is why the following weather conditions are notoriously linked to the muggiest of days and nights:
When the weather is muggy, it is unpleasantly warm and the air contains a lot of water. Want to learn more? Improve your vocabulary with English Vocabulary in Use from Cambridge.
What Causes Muggy Weather? 1 Dew Point a Good Measure of Mugginess. Since mugginess expresses how moist the air feels, you might think that relative... 2 High Dew Point + High Humidity. The absolute worst combination for comfort is if both the dew point is high (65°F and... 3 Sayings & Folklore. More ...