A platitude is a statement which is considered meaningless and boring because it has been made many times before in similar situations.
例句
Why couldn't he say something original instead of spouting the same old platitudes?他為什么就不能講些有新意的話，而不是喋喋不休地說些老生常談呢？...a stream of platitudes, outlining many problems but offering few solutions.概述了很多問題、但幾乎沒有提出解決辦法的一串陳詞濫調
英漢詞典釋義
n.
平常的話,老生常談,陳詞濫調
He was mouthing the usual platitudes about the need for more compassion.他言不由衷地說了些需要更加同情之類的陳腔濫調。