The phrase "more white hot" refers to a level of intensity or heat that is greater than simply "white hot." To find antonyms for this phrase, we must look for words that describe a lower level of heat or intensity. Some possible antonyms include: cool, cold, lukewarm, tepid, chilly, and frigid. These words suggest a range of temperatures and sensations that are opposite to the burning intensity of "more white hot." Additionally, using these antonyms can create a contrast in language, allowing for more nuanced and expressive writing.