1. 
[syn: bewitching, captivating, enchanting, enthralling, entrancing, fascinating]
The Collaborative International Dictionary of English v.0.48:
enthralling \enthralling\ adj.
   1. capturing interest as if by a spell; as, an enthralling
      book.
   Syn: bewitching, captivating, enchanting, entrancing,
        fascinating.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
enthralling
    adj 1: capturing interest as if by a spell; "bewitching smile";
           "Roosevelt was a captivating speaker"; "enchanting
           music"; "an enthralling book"; "antique papers of
           entrancing design"; "a fascinating woman" [syn:
           bewitching, captivating, enchanting, enthralling,
           entrancing, fascinating]
Moby Thesaurus II by Grady Ward, 1.0:
74 Moby Thesaurus words for "enthralling":
   absorbing, alluring, appealing, appetizing, arresting, attractive,
   beguiling, bewitching, blandishing, cajoling, captivating,
   catching, charismatic, charming, coaxing, come-hither, consuming,
   coquettish, delightful, enchanting, engaging, engrossing,
   enravishing, enticing, entrancing, exciting, exotic, exquisite,
   fascinating, fetching, flirtatious, glamorous, gripping,
   heart-robbing, holding, hypnotic, hypnotizing, interesting,
   intriguing, inviting, irresistible, lovely, luxurious, magnetic,
   mesmeric, mesmerizing, mouth-watering, obsessing, obsessive,
   piquant, prepossessing, provocative, provoquant, ravishing,
   riveting, seducing, seductive, sensuous, siren, sirenic,
   spellbinding, spellful, taking, tantalizing, teasing, tempting,
   thrilling, tickling, titillating, titillative, voluptuous, winning,
   winsome, witching