inanely       
adverb uk/ɪˈneɪn.li/ us/ɪˈneɪn.li/
 愚蠢的;无聊的;无意义的
in a way that is extremely silly or has no real meaning or importance
  He grinned inanely. 他傻傻地笑了笑。 
 She looked down and inanely shuffled her feet. 她低下头,无聊地把脚在地上拖来划去。 
 See: inane
 - More examples
 - You’re just sitting inanely in front of your computer for hours!
 - As a teenager, I was inanely impressed by pop stars.
 - She suddenly realized she was chattering inanely.