The word "un-believe" means to not accept something as true or real. Its antonyms are a set of words that describe the opposite of disbelief, such as "believe," "trust," "accept," "embrace," "have faith in," and "acknowledge." These words signify a genuine acceptance and conviction that something is indeed true and worthy of belief. They connote faith, confidence, and optimism, all of which stand in contrast to the doubt, skepticism, and cynicism associated with unbelief. By using antonyms of un-believe, one can express a positive and affirming attitude towards life, the universe, and all that lies within.