The word "most decalescent" means extremely hot or glowing. Its antonyms, on the other hand, are words that indicate the opposite temperature or feeling. These can be words like cold, frozen, chilled, or icy. Other antonyms for "most decalescent" can include words like cool, tepid, lukewarm, or moderate. These words can be used to describe temperatures, emotions, or even attitudes. By using these antonyms, we can help emphasize the contrast between hot and cold, passion and apathy, or boldness and caution, creating a more nuanced and complex understanding of the world around us.