Nefariousnesses is a noun that refers to the state or quality of being wicked, evil or criminal. As it is a rather complex term, finding antonyms for this word may seem challenging. However, some possible antonyms for nefariousnesses could be righteousness, virtue, honesty, uprightness, purity, morality or goodness. These words all represent positive characteristics that are opposed to nefariousness and evoke a sense of honor and decency. While nefariousness is typically associated with negative behaviors, such as deceit or corruption, focusing on its antonyms can help cultivate a mindset of positivity and ethical behavior.