Source : Webster's Revised Unabridged Dictionary (1913)

Awesome \Awe"some\, a.
   1. Causing awe; appalling; awful; as, an awesome sight.
      --Wright.

   2. Expressive of awe or terror.

            An awesome glance up at the auld castle. --Sir W.
                                                  Scott.

Source : WordNet®

awesome
     adj : inspiring awe or admiration or wonder; "New York is an
           amazing city"; "the Grand Canyon is an awe-inspiring
           sight"; "the awesome complexity of the universe"; "this
           sea, whose gently awful stirrings seem to speak of some
           hidden soul beneath"- Melville; "Westminster Hall's
           awing majesty, so vast, so high, so silent" [syn: {amazing},
            {awe-inspiring}, {awful}, {awing}]