[ADJ 形容词]无比的；空前的；无双的；绝无仅有的 If you describe something as unparalleled, you are emphasizing that it is, for example, bigger, better, or worse than anything else of its kind, or anything that has happened before.
[oft ADJ since/in n]
[emphasis]
Germany's unparalleled prosperity is based on wise investments...
德国空前的繁荣是建立在明智的投资基础之上的。
The country is facing a crisis unparalleled since the Second World War.
该国正面临着一场二战以来前所未有的危机。
Oxford
un·par·al·leledAWL/ʌnˈpærəleld; NAmEʌnˈpærəleld/adjective( formal) used to emphasize that sth is bigger, better or worse than anything else like it 无比的；无双的；空前的；绝无仅有的SYN
unequalled
◆It was an unparalleled opportunity to develop her career.这是她发展自己的事业的绝好机会。◆The book has enjoyed a success unparalleled in recent publishing history.这本书在近期出版史上是空前的成功。☞compare