ex*cep"tion*al*ly
Webster's Dictionary (GCIDE)
Exceptional \Ex*cep"tion*al\, a. [Cf. F. exceptionnel.] Forming an exception; not ordinary; uncommon; rare; hence, better than the average; superior. --Lyell. [1913 Webster]
This particular spot had exceptional advantages. --Jowett (Th. ) -- Ex*cep"tion*al*ly, adv. [1913 Webster]