1560s, a back-formation from existence, or else from Latin existentem/exsistentem (nominative existens/exsistens), present participle of existere/exsistere (see existence).
实用例句
1. This policy, they say, is at best confused and at worst non-existent.
有人说这项政策往好里说是混乱不堪，往坏里说就是形同虚设。
来自柯林斯例句
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。
来自柯林斯例句
3. Their remedy lay within the range of existent technology.
他们的治疗方法利用现有技术可以实现。
来自柯林斯例句
4. Hygiene was non-existent: no running water, no bathroom.
