Li·bid·i·nous a. Having lustful desires; characterized by lewdness; sensual; lascivious. -- Li*bid*i*nous*ly, adv. -- Li*bid*i*nous*ness, n. Syn: -- Lewd; lustful; lascivious; unchaste; impure; sensual; licentious; lecherous; salacious. ◄ ►