‘Sour,’ morose, peevish. Obs.

Having a harsh, morose, or peevish disposition; sullen, austere; gloomy, discontented, embittered.

figurative. Chiefly of temper, feelings, etc.: Virulent, malignant, embittered.

Full of venom; poisonous. literal and figurative.

Of the nature of the crab-tree or its fruit; figurative sour-tempered, peevish, morose; harsh.

figurative.

Passing into adjective in the sense of ‘bitter, sour, sour-looking’, as verjuice countenance, verjuice face, verjuice wit.

Sourish.

Bitterly irritating to the feelings; of bitter and irritating temper or manner.

= acrid, adj.

Somewhat sour, in various senses. Of persons (or animals), temper, etc.

Made bitter, or more bitter. (Chiefly figurative; cf. senses of the verb.)

figurative. Esp. of person, or his or her speech or temperament: somewhat acid or tart in character; sharp, cutting.

= acidulous, adj. 1 2. Now rare.

Vinegary; sour-tempered.

Attributive, in the sense ‘extremely sour in temper or disposition’; also in combinations, as vinegar-faced, vinegar-hearted adjs.

Resembling vinegar; sour like vinegar. Chiefly figurative.

Of persons: Embittered, crabbed.

Of speech, manner, or temper: bitter and sharp; forthright and cutting. Later also in literal sense of food or flavour: astringently sour or…

figurative and in figurative contexts.

Embittered; severe.

Characterized by acerbity; acerbic.

(see quot. 1941).

sour-faced, miserable.