nullity

音标发音

adj性质的同根词
null：无效的，无价值的；等于零的。
n性质的同根词
null：零，[数]空。
nullification：无效；废弃；取消；（美）州对联邦法令的拒绝执行或承认。
nullifier：废弃者；使无效者；取消者。
vt性质的同根词
nullify：使无效，作废；取消。

In society, the most accomplished man of mere professional skill is often a nullity; he has sunk his personality in his dexterity.
在社会上，一个只懂专业的人那怕技术再娴熟也毫无价值；他的人性已经淹没在熟练的技术中了。
Any generous act is absurd, a renunciation unheard of in the ordinary man, who drapes himself in morality in order to hide his vulgar nullity.
任何慷慨的行动都是荒谬的——一个为了掩饰自己庸俗的存在而把自己悬挂在道德上的正常人也许从未听说过这种关系。
The nullity and voidness of the clauses set out in the preceding paragraph shall not prejudice the validity of the other clauses of the contract.
前款规定的合同条款的无效，不影响合同其他条款的效力。

This was the world, just the same indoors and out, a place of total nullity.
NEWYORKER: Raj, Bohemian
Saddam Hussein dismantled the U.S. inspection system and basically rendered the sanction regime, which was imposed by the U.N. a nullity.
CENTERFORSECURITYPOLICY: Center For Security Policy
The return is a nullity because the electronic file submitted to the Service is a document unknown and unverified by the taxpayer.
FORBES: David Wallace Would Have Loved This

无效
The courts may confirm a procedural act nullity on application and on its power.
法院民事诉讼行为的无效可通过两种程序机制予以确认,一是依当事人申请确认无效,二是法院依职权确认无效。
数学
零度
零维数
零化度
退化阶数