Libidinous \Li*bid"i*nous\ (-n[u^]s), a. [L. libidinosus, fr. libido, libidinis, pleasure, desire, lust, fr. libet, lubet, it pleases: cf. F. libidineux. See {Lief}.] Having lustful desires; characterized by lewdness; sensual; lascivious. -- {Li*bid"i*nous*ly}, adv. -- {Li*bid"i*nous*ness}, n. [1913 Webster] Syn: Lewd; lustful; lascivious; unchaste; impure; sensual; licentious; lecherous; salacious. [1913 Webster]