The Collaborative International Dictionary of English v.0.48:

Adventuress \Ad*ven"tur*ess\, n.
   A female adventurer; a woman who tries to gain position by
   equivocal means.
   [1913 Webster]

WordNet (r) 3.0 (2006):

adventuress
    n 1: a woman adventurer

Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "adventuress":
   Aspasia, Delilah, Jezebel, Messalina, Phryne, Thais, adventurer,
   brazenface, courtesan, daredevil, demimondaine, demimonde, demirep,
   devil, femme fatale, fire-eater, harem girl, harum-scarum, hellcat,
   hetaera, hotspur, houri, madbrain, madcap, odalisque, rantipole,
   seductress, temptress, vamp, vampire, wild man