Source : Webster's Revised Unabridged Dictionary (1913)

Wondrous \Won"drous\, adv. [OE. wonders, adv. (later also adj.).
   See {Wonder}, n., and cf. {-wards}.]
   In a wonderful or surprising manner or degree; wonderfully.

         For sylphs, yet mindful of their ancient race, Are, as
         when women, wondrous fond of place.      --Pope.

         And now there came both mist and snow, And it grew
         wondrous cold.                           --Coleridge.

Wondrous \Won"drous\, a.
   Wonderful; astonishing; admirable; marvelous; such as excite
   surprise and astonishment; strange.

         That I may . . . tell of all thy wondrous works. --Ps.
                                                  xxvi. 7.
   -- {Won"drous*ly}, adv. -- {Won"drous*ness}, n.

         Chloe complains, and wondrously's aggrieved.
                                                  --Granville.

Source : WordNet®

wondrous
     adv : (used as an intensifier) extremely well; "her voice is
           superbly disciplined"; "the colors changed wondrously
           slowly" [syn: {wonderfully}, {wondrously}, {superbly},
           {toppingly}, {marvellously}, {terrifically}, {marvelously}]

wondrous
     adj : extraordinarily good; used especially as intensifiers; "a
           fantastic trip to the Orient"; "the film was
           fantastic!"; "a howling success"; "a marvelous
           collection of rare books"; "had a rattling conversation
           about politics"; "a tremendous achievement" [syn: {fantastic},
            {howling(a)}, {marvelous}, {marvellous}, {rattling(a)},
            {terrific}, {tremendous}, {wonderful}]