inane       
adjective uk/ɪˈneɪn/ us/ɪˈneɪn/
 极其愚蠢的;无意义的;无聊的
extremely silly or with no real meaning or importance
  He's always making inane remarks. 他老是发表愚蠢空洞的言论。 
 There are too many inane quiz shows on television these days. 现在电视中无聊的智力竞答节目太多。