See partiality in Webster's New World Roget's A-Z Thesaurus II
noun
Favorable or preferential bias:
favor, favoritism, partialness, preference. See fairAn inclination for or against that inhibits impartial judgment:
bias, one-sidedness, partisanship, prejudice, prepossession, tendentiousness. See affect, like, straightA liking for something:
appetite, fondness, preference, relish, taste, weakness. See likeAn inclination to something:
bent, bias, cast, disposition, leaning, penchant, predilection, predisposition, proclivity, proneness, propensity, squint, tendency, trend, turn. See approach, like
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