Verjuice

1. (n.) The sour juice of crab apples, of green or unripe grapes, apples, etc.; also, an acid liquor made from such juice.

2. (n.) Tartness; sourness, as of disposition.

Thesaurus Entries

acescency, acid, acidity, acidness, acidulousness, acridity, acridness, acrimony, animosity, asperity, astringence, astringency, bile, bite, bitingness, bitter pill, bitter resentment, bitterness, bitterness of spirit, causticity, causticness, choler, corrosiveness, crabbedness, cuttingness, dourness, dryness, edge, fierceness, gall, gall and wormwood, gnashing of teeth, greenness, grip, hard feelings, harshness, heartburning, hyperacidity, incisiveness, keenness, mordacity, mordancy, piercingness, piquancy, poignancy, point, pungency, rancor, rankling, rigor, roughness, severity, sharpness, slow burn, soreness, sour, sourishness, sourness, spleen, stabbingness, sting, stridency, stringency, subacidity, surliness, tartishness, tartness, teeth, trenchancy, unripeness, unsweetness, vehemence, verjuice, vinegariness, vinegarishness, violence, virulence