non-existent

英 [ˌnɒn ɪɡˈzɪstənt]

美 [ˌnɑːn ɪɡˈzɪstənt]

adj.  不存在的; 不真实的

复数：non-existents　

Collins.1

牛津词典

adj.

• 不存在的；不真实的
  not existing; not real
  1. a non-existent problem
     不存在的问题
  2. ‘How's your social life?’ ‘Non-existent, I'm afraid.’
     “你的社交生活如何？”“我恐怕没有社交生活。”
  3. Hospital beds were scarce and medicines were practically non-existent .
     当时医院病床紧缺，药物根本所剩无几。

柯林斯词典

• ADJ 不存在的
  If you say that something isnon-existent, you mean that it does not exist when you feel that it should.
  1. Hygiene was non-existent: no running water, no bathroom...
     卫生根本谈不上：没有自来水、没有卫生间。
  2. You'll take everything you're offered yet your own generosity is virtually non-existent.
     你倒是来者不拒，照单全收，可你自己实际上却一毛不拔。

双语例句

• This means that privileges can be granted to non-existent user and group accounts with the information being stored in the database.
  这意味着，可以把权限和数据库中存储的信息授予不存在的用户和组帐户。
• For people who have no contact with domestic or wild birds the risk is almost non-existent.
  对不接触家禽或野生鸟类的人，几乎不存在危险。
• I think the most as long as the following reasons: 1, Ineffective supervision departments or non-existent;
  我想最只要有以下几方面原因：1、监督部门不力或者根本不存在；
• Jane began to rebuild her social life which had been non-existent since her marriage
  简开始重新建立自己自结婚以来便陷于沉寂的社交生活。
• In areas where health systems are weak or virtually non-existent, basic data will not be collected.
  在卫生系统薄弱或事实上不存在的地区，是不会收集基本数据的。
• Wildlife is virtually non-existent in this area.
  野生动物在这个地区几乎不存在。
• Sanitary conditions in the camps are non-existent and cholera, typhoid and other epidemics could break out any day.
  军营里根本没有卫生条件，霍乱、伤寒和其他传染病随时可能爆发。
• Many species of bee are almost non-existent in this area now.
  现在该地区的许多蜂类几乎绝种了。
• Pollution-control measures are either not strict or non-existent, leading to choking clouds of smog.
  污染控制措施，或者不严格或根本不存在，导致窒息云彩的烟雾。
• They're working off of an imagined use case, with an invisible and non-existent user.
  他们开发出的是想象的用例，以及看不到和不存在的用户。