Certainly not scintillating (5)
I believe the answer is:
banal
(Other definitions for banal that I've seen before include "Obvious and boring" , "Trite or fatuous" , "'Hackneyed, trite (5)'" , "Stock" , "Tediously unoriginal" .)
I believe the answer is:
banal
(Other definitions for banal that I've seen before include "Obvious and boring" , "Trite or fatuous" , "'Hackneyed, trite (5)'" , "Stock" , "Tediously unoriginal" .)