partiality

chauvinism, cronyism, favoritism, nepotism

self-opinionatedness, self-partiality

bent, inclination, leaning, penchant, predilection, predisposition, proclivity, propensity, tendency

preconception, prejudgment, prepossession

favor, one-sidedness, partisanship, prejudice

endowment, faculty, flair, genius, gift, knack, talent

addiction, appetite, fancy, fondness, like, liking, preference, taste

forte, speciality, specialty

convention, custom, habit, pattern, practice (also practise), routine, trick, way, wont

eccentricity, idiosyncrasy, kink, oddity, peculiarity, quirk, singularity

craving, desire, hankering, longing, thirst, yen

enthusiasm, gusto, interest, passion

bias, prejudice

bent, inclination, leaning, propensity, tendency

tooth

palate

weakness