phenomenally

from WordNet (r) 3.0 (2006)

phenomenally
    adv 1: to a phenomenal degree; "his reaction was phenomenally
           quick"

from The Collaborative International Dictionary of English v.0.48

Phenomenal \Phe*nom"e*nal\, a. [Cf. F. ph['e]nom['e]nal.]
   Relating to, or of the nature of, a phenomenon; hence,
   extraordinary; wonderful; as, a phenomenal memory. --
   {Phe*nom"e*nal*ly}, adv.
   [1913 Webster]