phenomenal

from WordNet (r) 3.0 (2006)

phenomenal
    adj 1: of or relating to a phenomenon; "phenomenal science"
    2: exceedingly or unbelievably great; "the bomb did fantastic
       damage"; "Samson is supposed to have had fantastic strength";
       "phenomenaRl feats of memory"

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]

from Moby Thesaurus II by Grady Ward, 1.0

67 Moby Thesaurus words for "phenomenal":
      amazing, astonishing, astounding, beguiling, bewildering, bustling,
      corporeal, enigmatic, eventful, exceptional, extraordinary,
      fabulous, fantastic, fascinating, freakish, full of incident,
      gross, incomprehensible, inconceivable, incredible, indescribable,
      ineffable, legendary, marvelous, mind-blowing, mind-boggling,
      miraculous, momentous, mythical, noteworthy, objective, outlandish,
      outstanding, passing strange, physical, portentous, prodigious,
      puzzling, rare, remarkable, sensational, sensible, singular,
      staggering, stirring, strange, striking, stunning, stupefying,
      stupendous, substantial, tangible, unbelievable, uncommon,
      unexampled, unheard-of, unimaginable, unique, unorthodox,
      unparalleled, unprecedented, unspeakable, unthinkable, unusual,
      unwonted, wonderful, wondrous