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

• 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。
• They direct you to non-existent files, corrupted fakes and hide files which others genuinely want to share.
  他们直接你不存在的文件，已损坏的假货和隐藏文件的其他真正想分享。
• They have little private transport and live in areas with poor to non-existent roads.
  他们只有很少的私人运输力量，而且该贫困民地区的道路也不通畅。
• Reported when trying to erase, rename or open a non-existent file.
  当尝试的时候，报告抹掉，重新命名或者开启一个非存在的文件。
• 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。
• 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。
• It is an error to extract a value using a non-existent key.
  试图析取从一个不存在的关键字中读取值会导致错误。
• Its infrastructure and institutions are not so much in ruins as non-existent.
  刚果的基础设施和机构与其说处于废墟状态，不如说根本不存在。
• 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。
• 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。