What is another word for "wormwood"?

Roget's Thesaurus (1911) lists these synonyms for "wormwood": acerbity, acrid, acridity, acrimonious, acrimony, amaritude, and, austerity, bitter, bitterness, disgust, fulsome, gall, loathsome, nasty, nauseate, nauseous, offensive, pall, quassia, repulsive, rough, roughness, rue, sicken, sickening, sour, stomach, the, turn, unpleasant.