The opposite of wast livid can vary depending on the context in which it is used. However, some common antonyms for the word "wast livid" include peaceable, calm, tranquil, serene, easygoing, content, and happy. These words indicate a state of peace, calmness or relaxation. They portray the opposite of the intense anger, irritability, or frustration that wast livid tends to express. It is essential to remember that words always carry varying tonal nuances or connotations, and it is thus crucial to consider the context in which the word is used when determining its opposite.