sweet-and-sour Syllabification: (sweet-and-sour)Translate sweet-and-sour | into French | into German | into Spanish Definition of sweet-and-sour adjective [attributive] (especially of Chinese-style food) cooked in a sauce containing sugar and either vinegar or lemon. sweet-and-sour in other Oxford dictionaries Definition of sweet-and-sour in the British & World English dictionary