platitudinous       
adjective  formal disapproving uk/ˌplæt.ɪˈtʃuː.dɪ.nəs/ us/ˌplæt̬.əˈtuː.dən.əs/
 陈词滥调
boring and having no meaning because of being said so many times before
  The speech was long and rather platitudinous.
 After a few moments more of this platitudinous chat we bowed and went on our way.  又这样聊了几句陈词滥调之后,我们鞠了一躬,继续上路。 
 See: platitude
 - More examples
 - There were the usual platitudinous sound-bites about respect for the opposition.
 - The policy recommendations seem a little platitudinous.
 - Their gems of wisdom are sometimes denounced as platitudinous and simplistic.