Definitions

1. noun

one who or that which is more refined or polished, typically to a greater degree than something else.

“The connoisseur was the sheenier among the group, able to discern even the subtlest nuances in the artwork.”

2. adjective

more refined or polished, typically to a greater degree than something else.

“The sheenier finish on the new car model made it stand out from its competitors.”