む蒸muしshiあつ暑atsuいiむしmushiあつ暑atsuいi
1.
A condition characterized by high temperatures combined with significant humidity, making the atmosphere feel heavy and stifling, often resulting in discomfort.
2.
An oppressive warmth where the air feels thick due to elevated moisture levels and lack of wind, leading to a sensation of being smothered or overheated.
3.
Describing an environment that is not only hot but also muggy, creating an uncomfortable feeling that can disturb sleep and overall well-being.
Example:
その晩はとてもむし暑かった。