unannounced

英 [ˌʌnəˈnaʊnst]

美 [ˌʌnəˈnaʊnst]

adj.  未通知的; 未预告的; 未打招呼的

Collins.1 / BNC.20162 / COCA.15841

牛津词典

adj.

• 未通知的；未预告的；未打招呼的
  happening without anyone being told or warned in advance
  1. She just turned up unannounced on my doorstep.
     她未打招呼就来到我家门口了。
  2. an unannounced increase in bus fares
     汽车票价未经公告的上涨

柯林斯词典

• ADJ 未事先通知的；未提前说明的；未打招呼的
  If someone arrives or does somethingunannounced, they do it unexpectedly and without anyone having being told about it beforehand.
  1. He had just arrived unannounced from South America...
     他刚刚从南美来到这里，事先没有打招呼。
  2. My first night in Saigon I paid an unannounced visit to my father's cousins.
     到西贡的第一个晚上，我给父亲的堂兄堂弟们来了个突然袭击。

双语例句

• He arrived unannounced. advance drawing change notice
  他未事先通知而来到.图纸更改的预先通知
• German Chancellor Angela Merkel has made a previously unannounced trip to Afghanistan to visit with German troops serving on the NATO peacekeeping force there.
  德国总理默克尔突然对阿富汗进行了一次事先未宣布的访问，视察了驻阿富汗的北约维和部队中的德国军队。
• Churchill arrived unannounced at beaverbrook's London suite.
  丘吉尔事先不通知突然来到比弗布鲁克在伦敦的寓所。
• Did you hear this? Hillary Clinton busted her elbow. Apparently, she slipped and hit the floor when she went home to her husband early, unannounced.
  听说了吗？希拉里伤了胳膊，他没告诉克林顿就提前回家，结果滑到摔倒了地板上。
• Is there an established procedure to conduct unannounced security checks periodically for all areas of concern?
  是否有相关制度，对所有重点区域是否定期进行突击安全检查？
• Recently, Blizzard Entertainment added two job openings under the category titled Unannounced.
  最近，暴雪娱乐为一个未命名的项目开放了两个职位。
• President Obama has made a sudden and unannounced visit to Afghanistan where he's held a series of talks and addressed cheering American troops.
  奥巴马总统未经宣布突然访问阿富汗。访问期间，奥巴马进行了一系列会谈，并向欢欣鼓舞的美国军队发表讲话。
• President Obama signed the agreement with his Afghan counterpart Hamid Karzai during Tuesday's unannounced visit to Kabul.
  奥巴马总统在星期二对喀布尔进行的事先未作宣布的访问中与阿富汗总统卡尔扎伊签署了这项协议。
• That is what is new among Asians elusive, unannounced and unmistakable all at once.
  这在亚洲人身上是一种新现象，来得难以捉摸、突然，却又明确无误。
• He had just arrived unannounced from South America
  他刚刚从南美来到这里，事先没有打招呼。