nullity

英汉字典
英英字典

解释: 无效; 无效的行为; 无效的証书;

同义: void nihility nothingness nullity
词性: n
解释: the state of nonexistence
示例: None

同义: nullity
词性: n
解释: something that is null (especially an enactment that has no legal validity)
示例: None