Equitableness refers to the quality of being fair and impartial in decision-making, while its antonyms are words that describe the opposite of fairness, such as bias, injustice, prejudice, and partiality. These words describe situations where judgments are made with a lack of equal consideration of different parties. Another antonym for equitableness is inequality, as it refers to situations where one group or individual benefits more than others. Other antonyms include favoritism, discrimination, and nepotism, which all imply unfair treatment or favoritism towards specific individuals or groups. These antonyms of equitableness reflect the idea that fairness is a continuum, and there are many factors that can influence it.