A woman who seeks social and financial advancement by unscrupulous means. See Usage Note at -ess.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "adventuress" in a sentence
"Despite her aloofness, Mrs. Grant did now and then steal a glance at Mrs. Pope to see if this brazen creature  would betray in any manner the fact that she was sleeping with the senator, but the adventuress was a wily one who disclosed nothing."
""Hum -- maybe my adventuress was the same person in disguise," Mr. Palmer thoughtfully observed."
"Meanwhile, Irene Adler has been running around as the kind of adventuress I thought "adventuress" meant when I was a little kid reading the first few paragraphs of "A Scandal in Bohemia"."