ROGET THESAURUS
bitters
Bitterness
N
bitterness, acridness, acridity, acrimony, caustic, alkali, acerbity, gall, wormwood,
bitters, astringent
bitters, Angostura, aromatic
bitters, sourness, pungency, alkaloids, turmeric, bitter, bitterish, acrid, acerb, acerbic, bitter as gall, bitter pill to take, sugar coating on a bitter pill.