The sensation of a sour taste. / A drink made with whiskey, lemon or lime juice and sugar. / (by extension) Any cocktail containing lemon or lime juice.

Having an acidic, sharp or tangy taste. / Made rancid by fermentation, etc. / Tasting or smelling rancid. / (of a person's character) Peevish or bad-tempered.

(transitive) To make sour. / (intransitive) To become sour. / (transitive) To spoil or mar; to make disenchanted. / (intransitive) To become disenchanted.

The quality or condition of being sour, usually said of human personalities.

That has become or been made sour.

simple past tense and past participle of sour

plural of sourness

(literally, figuratively) Characterised by sourness (all senses)

present participle of sour

Third-person singular simple present indicative form of sour