grandiose grandiose /ˈgrændiːˌoʊs/

adjective

1. () Impressive because of unnecessary largeness or grandeur; used to show disapproval  ( grandiose )
   impressive because of unnecessary largeness or grandeur; used to show disapproval
   
2. Affectedly genteel  ( grandiose , hifalutin , highfalutin , highfaluting , hoity-toity , la-di-da )
   affectedly genteel