lecherousness \lech"er*ous*ness\ n. an inclination to excessive indulgence in sexual activity; habitually developing a strong sexual arousal. Syn: lust, lustfulness, itch. [WordNet 1.5]
Lecherous \Lech"er*ous\, a. Like a lecher; addicted to lewdness; excessively lustful; -- used mostly of men; also, lust-provoking. "A lecherous thing is wine." --Chaucer. -- {Lech"er*ous*ly}, adv. -- {Lech"er*ous*ness}, n. [1913 Webster]