Synonyms to telltale sign

idiosyncrasy, 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