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]

WordNet (r) 3.0 (2006):

attractiveness
    n 1: the quality of arousing interest; being attractive or
         something that attracts; "her personality held a strange
         attraction for him" [syn: attraction, attractiveness]
    2: sexual allure [ant: unattractiveness]