"Be deviled" is a term that refers to a state of being troubled or harassed by someone or something. Its antonym, therefore, would be a word that denotes a state of calmness and peace. Words that can serve as antonyms for "be deviled" include "untroubled," "serene," "relaxed," "calm," "content," "at ease," "comfortable," "peaceful," and "tranquil." These words represent a state of mind where there is no disturbance or problem. So, if you want to describe a situation where there is no trouble or disturbance, you can use any of these words as an antonym for "be deviled.