\Spir"it*u*ous\, a. [Cf. (for sense 2) F. spiritueux. Cf. {Spiritous}.] 1. Having the quality of spirit; tenuous in substance, and having active powers or properties; ethereal; immaterial; spiritual; pure. 2. Containing, or of the nature of, alcoholic (esp. distilled) spirit; consisting of refined spirit; alcoholic; ardent; as, spirituous liquors. 3. Lively; gay; vivid; airy. [Obs.] --Sir H. Wotton. The mind of man is of that spirituous, stirring nature, that it is perpetually at work. --South.