Source : Webster's Revised Unabridged Dictionary (1913)

Enchanting \En*chant"ing\, a.
   Having a power of enchantment; charming; fascinating. --
   {En*chant"ing*ly}, adv.

Source : WordNet®

enchantingly
     adv : in a bewitching manner; "she was bewitchingly beautiful"
           [syn: {bewitchingly}, {captivatingly}, {enthrallingly}]