Bewitching, a.
Having power to bewitch or fascinate; enchanting; captivating; charming. -- Be*witch"ing*ly, adv. -- Be*witch"ing*ness, n.
Shades of meaning
Fernald has no entry of its own for bewitching; he lists it under beautiful, charming.
Where he writes about it:
That is charming or bewitching which is adapted to win others as by a magic spell. — from charming