Platitude
Etymology
From French "platitude," "flatness" or "dullness," coined from "plat," "flat," on the model of words like "latitude." The metaphor is spatial: a platitude is a thought with no relief or depth, pressed flat by overuse. The term carries built-in disdain, marking not just a dull remark but one delivered as though it were profound.
noun · /PLAT-uh-tood/
A remark or statement that is trite, obvious, and offered as if it were fresh or meaningful.
What it names
The filler that impersonates wisdom — "everything happens for a reason," "it is what it is" — words that occupy the space where a real thought should go.
Example
The all-hands was forty minutes of platitudes about synergy and none of the honesty people had come for.
Related idea
A platitude is offered as if meaningful and falls flat; a truism is content to be plainly, unpretentiously obvious.