Splendid or impressive (11)
I believe the answer is:
magnificent
I believe this is a double definition.
'splendid' is the first definition.
(I know that splendid can be written as magnificent)
'impressive' is the second definition.
(thesaurus)
(Other definitions for magnificent that I've seen before include "Highly impressive" , "Very beautiful, impressive" , "Superb, imposing" , "like Lorenzo de' Medici" , "brilliant" .)