The Collaborative International Dictionary of English v.0.48:

enthralled \enthralled\ adj.
   1. held in slavery.

   Syn: bond, enslaved, in bondage.
        [WordNet 1.5]

   2. filled with wonder and delight.

   Syn: beguiled, captivated, charmed, delighted, entranced.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

enthralled
    adj 1: filled with wonder and delight [syn: beguiled,
           captivated, charmed, delighted, enthralled,
           entranced]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "enthralled":
   agape, aghast, agog, all agog, amazed, arrested, astonished,
   astounded, at gaze, awed, awestruck, beguiled, bewildered,
   bewitched, bond, breathless, captivated, captive, caught, charmed,
   confounded, disenfranchised, dumbfounded, dumbstruck, enchanted,
   enraptured, enravished, enslaved, entranced, fascinated, fixed,
   flabbergasted, gaping, gauping, gazing, gripped, held, hypnotized,
   in awe, in awe of, in bondage, in bonds, in captivity, in chains,
   in slavery, in subjection, lost in wonder, marveling, mesmerized,
   open-eyed, openmouthed, oppressed, overwhelmed, popeyed, puzzled,
   rapt, rapt in wonder, spellbound, staggered, staring, stupefied,
   subjected, subjugated, suppressed, surprised, thunderstruck,
   under a charm, under the heel, under the lash, unfree, wide-eyed,
   wonder-struck, wondering