The term 'NOT FAIR!' can be broken down into several crossword solutions: ITS (3 letters), FOUL (4 letters), UNJUST (6 letters), RAINY (5 letters), UNEVEN (6 letters), and BIASED (6 letters). Each of these words can be used to describe something that is not fair, as they all imply a lack of fairness or justice. ITS implies something that is not right or proper, FOUL suggests something that is morally wrong, UNJUST implies an unfairness or inequality, RAINY implies something that is not equal or balanced, UNEVEN implies something that is not level or consistent, and BIASED implies something that is prejudiced or discriminatory.