De calescent is an adjective that means cooling or becoming cold. Its antonyms are words which mean the opposite of cooling. Some suitable antonyms for de calescent are warming, heating, hot, and boiling. These words refer to an increase in temperature or heat. Other antonyms for de calescent include sweltering, scorching, and sizzling, which indicate a high level of hotness or heat. Antonyms for de calescent can also refer to weather or climates, such as humid, tropical, and hot and dry, which suggest a warm and sultry atmosphere. Using antonyms for de calescent helps to give a better understanding of temperature and weather conditions.