Source : Webster's Revised Unabridged Dictionary (1913)

Consumptive \Con*sump"tive\, a. [Cf. F. consomptif.]
   1. Of or pertaining to consumption; having the quality of
      consuming, or dissipating; destructive; wasting.

            It [prayer] is not consumptive or our time. --Sharp.

            A long consumptive war.               --Addison.

   2. (Med.) Affected with, or inclined to, consumption.

            The lean, consumptive wench, with coughs decayed.
                                                  --Dryden.

Consumptive \Con*sump"tive\, n.
   One affected with consumption; as, a resort for consumptives.

Source : WordNet®

consumptive
     adj 1: tending to consume or use often wastefully; "water suitable
            for beneficial consumptive uses"; "duties consumptive
            of time and energy"; "consumptive fires" [ant: {generative}]
     2: afflicted with or associated with pulmonary tuberculosis; "a
        consumptive patient"; "a consumptive cough"
     n : a person with pulmonary tuberculosis [syn: {lunger}]