implausibly       
adverb uk/ɪmˈplɔː.zə.bli/ us/ɪmˈplɑː.zə.bli/
 难以置信地;不可能地
in a way that is difficult to believe, or unlikely
  He implausibly claimed to know nothing about it. 他声称对此一无所知,这是不可能的。 
 The figures cited are implausibly high.
 See: implausible
 - More examples
 - This is an implausibly upbeat story.
 - The soldiers in the movie are implausibly well-groomed.
 - The plot relies on her implausibly rejecting an opportunity to escape.
 - They argue, not implausibly, that these decisions would have had to be taken anyway.
 - He denied - implausibly, some say - that there was a feud.