The antonyms for the word "un-holiest" are numerous, as the term connotes negativity, impurity, and wickedness. The opposite of un-holiest can be "holy," "pure," "righteous," "virtuous," "reverent," "angelic," "godly," "divine," and "sacred." Anything that is in contrast to being un-holy could fit the bill, including goodness, kindness, and morality. The antonyms demonstrate the polarity of the concept of holiness and the need to define what makes something holy. Therefore, it is essential to understand the antonyms of un-holiest to recognize the positive side of this dichotomy and build our morality on the foundation of righteousness.