The Collaborative International Dictionary of English v.0.48:

Amaze \A*maze"\, v. t. [imp. & p. p. Amazed; p. pr. & vb. n.
   Amazing.] [Pref. a- + maze.]
   1. To bewilder; to stupefy; to bring into a maze. [Obs.]
      [1913 Webster]

            A labyrinth to amaze his foes.        --Shak.
      [1913 Webster]

   2. To confound, as by fear, wonder, extreme surprise; to
      overwhelm with wonder; to astound; to astonish greatly.
      "Amazing Europe with her wit." --Goldsmith.
      [1913 Webster]

            And all the people were amazed, and said, Is not
            this the son of David?                --Matt. xii.
                                                  23.
      [1913 Webster]

   Syn: To astonish; astound; confound; bewilder; perplex;
        surprise.

   Usage: Amaze, Astonish. Amazement includes the notion of
          bewilderment of difficulty accompanied by surprise. It
          expresses a state in which one does not know what to
          do, or to say, or to think. Hence we are amazed at
          what we can not in the least account for. Astonishment
          also implies surprise. It expresses a state in which
          one is stunned by the vastness or greatness of
          something, or struck with some degree of horror, as
          when one is overpowered by the ?normity of an act,
          etc.
          [1913 Webster]

WordNet (r) 3.0 (2006):

amazed
    adj 1: filled with the emotional impact of overwhelming surprise
           or shock; "an amazed audience gave the magician a
           standing ovation"; "I stood enthralled, astonished by the
           vastness and majesty of the cathedral"; "astounded
           viewers wept at the pictures from the Oklahoma City
           bombing"; "stood in stunned silence"; "stunned scientists
           found not one but at least three viruses" [syn: amazed,
           astonied, astonished, astounded, stunned]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "amazed":
   agape, aghast, agog, all agog, astonished, astounded, at gaze,
   awed, awestruck, beguiled, bewildered, bewitched, breathless,
   captivated, confounded, dumbfounded, dumbstruck, enchanted,
   enraptured, enravished, enthralled, entranced, fascinated,
   flabbergasted, gaping, gauping, gazing, hypnotized, in awe,
   in awe of, lost in wonder, marveling, mesmerized, open-eyed,
   openmouthed, overwhelmed, popeyed, puzzled, rapt in wonder,
   spellbound, staggered, staring, stupefied, surprised,
   thunderstruck, under a charm, wide-eyed, wonder-struck,
   wondering