consumptive /kənˈsʌmptɪv/adjective 3noun 1forms 3 adjective3 •Having a tendency to consume; dissipating; destructive; wasteful. •Relating to pulmonary tuberculosis.The lean, consumptive, wench, with coughs decay'd, / Is call'd a pretty, tight, and slender maid. — 1701 •Of or relating to consumption. noun1 •A person suffering from pulmonary tuberculosis.The consumptive has managed to shake the servant from her side and walks alone, striving to make it look easy. — 2002 formsconsumptives · more consumptive · most consumptive