The word "un-fair" is typically used to describe a situation which is biased, unjust, or not equitable. Some possible antonyms of "un-fair" could be "fair", "just", "equitable", "impartial", "unbiased", "objective", "equal", "reasonable", "balanced", and "even-handed". These words all suggest that a situation or decision is based on merit, reason, or standards that are universally recognized and respected. They imply the absence of discrimination, partiality, or favoritism, and stand for values such as trust, respect, and transparency. Using these antonyms can help to clarify our expectations, goals, and ideals, and promote positive communication and cooperation in various contexts, from business to politics, education, and social justice.