dou·ble neg·a·tive
noun/ˌdʌbl ˈneɡətɪv/
/ˌdʌbl ˈneɡətɪv/
(grammar)- a negative statement containing two negative words. ‘I didn’t say nothing’ is a double negative because it contains two negative words, ‘didn’t’ and ‘nothing’. This use is not considered correct in standard English.
双重否定（I didn't say nothing 是双重否定句，包含 n't 和 nothing 两个否定词，此用法在标准英语中被视为不正确）