unheard of

英 [ʌnˈhɜːd əv]

美 [ʌnˈhɜːrd əv]

adj.  没发生过的; 无先例的; 令人震惊的; 前所未有的

Collins.1

柯林斯词典

• ADJ 没发生过的
  You can say that an event or situation isunheard ofwhen it never happens.
  1. Meals are taken communally with other guests in the dining-room. Private bathrooms and toilets are unheard of...
     饭是在餐厅和其他宾客一起吃。私人浴室和卫生间更是闻所未闻。
  2. It's almost unheard of in France for a top politician not to come from the social elite.
     在法国，大牌政客非社会精英阶层出身的几乎闻所未闻。
• ADJ 令人震惊的；前所未有的
  You can say that an event or situation isunheard ofwhen it happens for the first time and is very surprising or shocking.
  1. Long lines of people had queued up to buy at the unheard-of rate of two bottles of rum for $3...
     人们排起了长队，以空前的速度抢购3美元两瓶的朗姆酒。
  2. Mom announced that she was going to visit her family for a couple of weeks, which was absolutely unheard of.
     妈妈说她要回娘家几周，这绝对是前所未有的事。

双语例句

• Analysts said some of the price movements were unheard of in at least 20 years.
  分析师称，一些石化产品的价格走势至少20年闻所未闻。
• To travel that far in the Underdark without encountering at least a dozen deadly creatures was unheard of.
  在幽暗地域前进这么远却没有遭遇到至少一打致命的生物实在是闻所未闻。
• This kind of thing was absolutely unheard of.
  这种事之前可以说是闻所未闻的。
• Anaphylaxis to Paracetamol is virtually unheard of, despite the occasional unsubstantiated reports in the past.
  但对扑热息痛过敏应实际上是前所未闻，除了偶见章无充分证据的报导。
• I imagine extraordinary intrigues and unheard of wines and passions.
  我想象到一些不同寻常的私情和前所未闻的醇酒和情欲。
• Other events unknown, or largely unheard of, are will be unsuccessful, as well.
  其它不明的事件，或大部份未听过的都将同样的失败。
• A first novel by an unheard of writer; developments on an unheard-of scale.
  一个前所未闻的作家的处女作；以空前的规模发展。
• "That's not unheard of," says Bell, adding that similar conditions in1998 made headlines.
  “这是曾经发生过的，”贝尔说，他把1998年的相似情况做了补充和比较。
• Women choosing to keep their babies out-of-wedlock in China is almost unheard of.
  在中国，女人因非婚姻关系而自己养孩子的事情几乎是闻所未闻的。
• Contracts and written agreements are quite unheard of.
  合同和书面协议都是前所未闻的。