"It was unfair for the boss to give larger bonuses to his friends."
synonyms:
biased, cheating, discriminatory, dishonest
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, dishonorable, disproportionate, excessive, foul, inequitable, invidious, partial, prejudiced, underhanded, unequal, unethical, uneven, unfavorable, unjust, unjustified, unwarranted, wrong, wrongful