English to English

noun (n)

• the taste experience when vinegar or lemon juice is taken into the mouth(noun.cognition)

  Synonym:
  sour, tartness
  

  source: wordnet30
• the property of being acidic(noun.attribute)

  Synonym:
  acidity, sour
  

  source: wordnet30
• a sullen moody resentful disposition(noun.attribute)

  Synonym:
  moroseness, sulkiness, sullenness
  

  source: wordnet30
• The quality or state of being sour.(noun)

  source: webster1913