THESAURUS
air, aroma, atmosphere, attribute, aura, badge, balminess, bouquet, brand, breath, cachet, cast, character, characteristic, configuration, cut, differentia, differential, distinctive feature, earmark, feature, fetor, figure, flavor, fragrance, fragrancy, fruitiness, gust, hallmark, hint, idiocrasy, idiosyncrasy, impress, impression, incense, index, individualism, keynote, lineaments, mannerism, mark, marking, mold, muskiness, nature, nosegay, particularity, peculiarity, perfume, property, quality, quirk, redolence, savor, scent, seal, shape, singularity, smack, smell, specialty, spice, spiciness, spirit, stamp, stench, stink, suggestion, sweet savor, sweet smell, taint, tang, taste, token, tone, trait, trick
ROGET THESAURUS
Odor
N
odor, smell, odorament, scent, effluvium, emanation, exhalation, fume, essence, trail, nidor, redolence, sense of smell, scent, act of smelling, olfaction, olfactories, fragrance, odorant, bloodhound, hound, spoor, odorous, odoriferous, smelling, reeking, foul-smelling, strong- scented, redolent, graveolent, nidorous, pungent, putrid, foul, olfactory, quick-scented.