adjective
vapid
VAP-id/ˈvæpɪd/
Lacking liveliness, substance, or interest.
The repetitive, empty poses make the album feel vapid.

Etymology
Latin vapidus described a drink gone flat, literally one that had exhaled its vapor. This loss of freshness became a figurative description of dull, spiritless talk and writing.
In context
I'd be interested if it's going to be that surface level and vapid or if he's actually going to bring up things that could be substantive.
More examples
- She rejected the vapid slogan.
- His vapid reply avoided the real issue.
- The program offered little beyond vapid entertainment.
Forms
vapid · more vapid · most vapid
vapidity noun — lack of substance or interest