List of idiosyncrasy synonyms and idiosyncrasy related words.
aberration, abnormality, animus, anomaly, aptitude, aroma, attribute, badge, banner, bent, bias, brand, cachet, cast, character, characteristic, conceit, configuration, constitution, crackpotism, crank, crankiness, crankism, crotchet, crotchetiness, cut, deviancy, deviation, device, diathesis, differentia, differential, differentness, disposition, distinctive feature, divergence, dottiness, earmark, eccentricity, erraticism, erraticness, feature, figure, flavor, freakiness, freakishness, grain, gust, habit, hallmark, idiocrasy, image, impress, impression, inclination, index, indicant, indicator, individualism, insignia, irregularity, keynote, kidney, kink, leaning, lineaments, maggot, make, makeup, mannerism, mark, marking, measure, mental set, mettle, minauderie, mind, mind-set, mold, nature, nonconformity, note, oddity, odor, particularity, peculiar trait, peculiarity, picture, predilection, predisposition, preference, proclivity, propensity, property, quality, queerness, quip, quirk, quirkiness, representation, representative, savor, seal, set, shape, sigil, sign, signal, signature, singularity, slant, smack, specialty, stamp, strain, strangeness, streak, stripe, sure sign, symptom, taint, tang, taste, telltale sign, temper, temperament, tendency, token, trademark, trait, trick, trick of behavior, turn, turn of mind, twist, type, unconventionality, unnaturalness, warp, whim, whimsicality, whimsy