"Meaningless platitudes" refers to statements or cliches that sound nice or comforting, but lack any real depth, substance, or practical value. Full definition
It will be conducted behind closed doors, with as little scrutiny as possible, and only the most meaningless platitudes uttered by ministers. (politics.co.uk)
«We in the Parliamentary Party have observed at first hand his woeful performances in the Commons, his inability to take responsibility, demonstrate leadership or give the slightest indication that he is capable of moving beyond meaningless platitudes,» he wrote. (politicshome.com)
Others silently think we have no «willpower», and offer meaningless platitudes. (idmprogram.com)