sour meaning and definition

SOUR noun

Definition of sour (noun)

1. a cocktail made of a liquor (especially whiskey or gin) mixed with lemon or lime juice and sugar
2. the taste experience when vinegar or lemon juice is taken into the mouth
   • synonyms: sourness, tartness
3. the property of being acidic
   • synonyms: acidity, sourness

SOUR verb

Definition of sour (verb)

1. go sour or spoil
   • "The milk has soured"; "The wine worked"; "The cream has turned--we have to throw it out"
   • synonyms: ferment, turn, work
2. make sour or more sour
   • synonyms: acetify, acidify, acidulate
   • antonym: dulcify

SOUR adjective

Definition of sour (adjective)

1. smelling of fermentation or staleness
   • synonyms: rancid
2. having a sharp biting taste
   • antonym: sweet
3. one of the four basic taste sensations; like the taste of vinegar or lemons
4. in an unpalatable state
   • "sour milk"
   • synonyms: off, turned
5. inaccurate in pitch
   • "a false (or sour) note"; "her singing was off key"
   • synonyms: false, off-key
6. showing a brooding ill humor
   • "a dark scowl"; "the proverbially dour New England Puritan"; "a glum, hopeless shrug"; "he sat in moody silence"; "a morose and unsociable manner"; "a saturnine, almost misanthropic young genius"- Bruce Bliven; "a sour temper"; "a sullen crowd"
   • synonyms: dark, dour, glowering, glum, moody, morose, saturnine, sullen