debaucheryn.1. Corruption of fidelity; seduction from virtue, duty, or allegiance.()The republic of Paris will endeavor to complete the debauchery of the army. (Burke.)2. Excessive indulgence of the appetites; especially, excessive indulgence of lust; intemperance; sensuality; habitual lewdness.()Oppose . . . debauchery by temperance. (Sprat.)