Wordnet 3.0
ADJECTIVE (3)
1. 
 pleasing to the eye or mind especially through beauty or charm; 
- Example: "a remarkably attractive young man"- Example: "an attractive personality"- Example: "attractive clothes"- Example: "a book with attractive illustrations"2. 
 having power to arouse interest; 
- Example: "an attractive opportunity"- Example: "the job is attractive because of the pay"3. 
 having the properties of a magnet; 
 the ability to draw or pull; 
- Example: "an attractive force";
The Collaborative International Dictionary of English v.0.48:
Attractive \At*tract"ive\, a. [Cf. F. attractif.]
   1. Having the power or quality of attracting or drawing; as,
      the attractive force of bodies. --Sir I. Newton.
      [1913 Webster]
   2. Attracting or drawing by moral influence or pleasurable
      emotion; alluring; inviting; pleasing. "Attractive
      graces." --Milton. "Attractive eyes." --Thackeray.
      [1913 Webster]
            Flowers of a livid yellow, or fleshy color, are most
            attractive to flies.                  --Lubbock.
      [1913 Webster] -- At*tract"ive*ly, adv. --
      At*tract"ive*ness, n.
      [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Attractive \At*tract"ive\, n.
   That which attracts or draws; an attraction; an allurement.
   [1913 Webster]
         Speaks nothing but attractives and invitation. --South.
   [1913 Webster]
WordNet (r) 3.0 (2006):
attractive
    adj 1: pleasing to the eye or mind especially through beauty or
           charm; "a remarkably attractive young man"; "an
           attractive personality"; "attractive clothes"; "a book
           with attractive illustrations" [ant: unattractive]
    2: having power to arouse interest; "an attractive opportunity";
       "the job is attractive because of the pay"
    3: having the properties of a magnet; the ability to draw or
       pull; "an attractive force"; [ant: repulsive(a)]
Moby Thesaurus II by Grady Ward, 1.0:
113 Moby Thesaurus words for "attractive":
   absorbing, acceptable, adductive, adorable, aesthetic,
   aesthetically appealing, agreeable, alluring, appealing,
   appetizing, arresting, attracting, attrahent, beauteous, beautiful,
   beguiling, bewitching, blandishing, bonny, cajoling, captivating,
   catching, charismatic, charming, coaxing, come-hither, comely,
   consuming, coquettish, delightful, desirable, dragging, drawing,
   elegant, enchanting, endowed with beauty, engaging, engrossing,
   enravishing, enthralling, enticing, entrancing, enviable, exciting,
   exotic, exquisite, eye-filling, fair, fascinating, fetching, fine,
   flirtatious, flowerlike, glamorous, good-looking, graceful,
   gracile, gripping, handsome, heart-robbing, heavy, holding,
   hypnotic, interesting, intriguing, inviting, irresistible, likable,
   lovable, lovely, luring, luxurious, magnetic, magnetized, mesmeric,
   mesmerizing, mouth-watering, obsessing, obsessive, piquant,
   pleasing, prepossessing, pretty, provocative, provoquant,
   pulchritudinous, pulling, ravishing, seducing, seductive, sensuous,
   siren, sirenic, spellbinding, spellful, sympathetic, taking,
   tantalizing, teasing, tempting, thrilling, tickling, titillating,
   titillative, to be desired, toothsome, tugging, unobjectionable,
   voluptuous, winning, winsome, witching, worth having