THESAURUS
unsweet
acerb, acerbate, acerbic, acescent, crab, crabbed, dry, green, pickled, pungent, sec, sour, sour as vinegar, soured, sourish, tart, tartish, unripe, unsweetened, vinegarish, vinegary
ROGET THESAURUS
unsweet
Unsavoriness
N
unsavoriness, amaritude, acrimony, acridity (bitterness), roughness, acerbity, austerity, gall and wormwood, rue, quassia, aloes, marah, sickener, unsavory, unpalatable, unsweetened,
unsweet, ill-flavored, bitter, bitter as gall, acrid, acrimonious, rough, offensive, repulsive, nasty, sickening, nauseous, loathsome, fulsome, unpleasant.