'Presidential' definitions:

Definition of 'presidential'

From: WordNet
adjective
Relating to a president or presidency; "presidential aides"; "presidential veto"
adjective
Befitting a president; "criticized the candidate for not looking presidential" [ant: unpresidential]

Definition of 'Presidential'

From: GCIDE
  • Presidential \Pres`i*den"tial\, a.
  • 1. Presiding or watching over. "Presidential angels." --Glanvill. [1913 Webster]
  • 2. Of or pertaining to a president; as, the presidential chair; a presidential election. [1913 Webster]