The Collaborative International Dictionary of English v.0.48:

Ravisher \Rav"ish*er\ (-[~e]r), n.
   One who ravishes (in any sense).
   [1913 Webster]

WordNet (r) 3.0 (2006):

ravisher
    n 1: someone who assaults others sexually [syn: violator,
         debaucher, ravisher]
    2: a very attractive or seductive looking woman [syn: smasher,
       stunner, knockout, beauty, ravisher, sweetheart,
       peach, lulu, looker, mantrap, dish]

Moby Thesaurus II by Grady Ward, 1.0:

26 Moby Thesaurus words for "ravisher":
   betrayer, debaucher, deceiver, defiler, depredator, despoiler,
   forager, forayer, freebooter, looter, marauder, pillager,
   plunderer, raider, raper, rapist, rapparee, ravager, reiver,
   rifler, sacker, seducer, spoiler, spoliator, violator, wrecker