taste,
savor, zest, tang, essence, aroma, relish, piquancy, smack
antonym: tastelessness
additive,
seasoning, extract, spice, essence, condiment, herb, flavoring
hint,
sense, feeling, feel, suggestion, touch, idea, aspect, air
season,
spice, lace, salt, ginger
characterize,
distinguish, mark, pervade, run through, enhance, season, imbue, color