The Collaborative International Dictionary of English v.0.48:

Consumptive \Con*sump"tive\, n.
   One affected with consumption; as, a resort for consumptives.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Consumptive \Con*sump"tive\, a. [Cf. F. consomptif.]
   1. Of or pertaining to consumption; having the quality of
      consuming, or dissipating; destructive; wasting.
      [1913 Webster]

            It [prayer] is not consumptive or our time. --Sharp.
      [1913 Webster]

            A long consumptive war.               --Addison.
      [1913 Webster]

   2. (Med.) Affected with, or inclined to, consumption.
      [1913 Webster]

            The lean, consumptive wench, with coughs decayed.
                                                  --Dryden.
      [1913 Webster]

WordNet (r) 3.0 (2006):

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, productive]
    2: afflicted with or associated with pulmonary tuberculosis; "a
       consumptive patient"; "a consumptive cough"
    n 1: a person with pulmonary tuberculosis [syn: consumptive,
         lunger, tubercular]

Moby Thesaurus II by Grady Ward, 1.0:

100 Moby Thesaurus words for "consumptive":
   allergic, anemic, apoplectic, arthritic, astringent, baneful,
   bilious, calamitous, cancerous, case, cataclysmal, cataclysmic,
   catastrophic, chlorotic, colicky, collapsible, compactable,
   compressible, constringent, consuming, contractible, contractile,
   contractional, contractive, deadly, deflationary, demolishing,
   demolitionary, depredatory, desolating, destroying, destructive,
   devastating, disastrous, doomful, dropsical, dyspeptic, edematous,
   encephalitic, epileptic, fatal, fateful, foldable, fratricidal,
   incurable, inpatient, internecine, invalid, laryngitic, leprous,
   luetic, malarial, malignant, measly, nephritic, neuralgic,
   neuritic, nihilist, nihilistic, outpatient, palsied, paralytic,
   patient, phthisic, pleuritic, pneumonic, pocky, podagric, rachitic,
   ravaging, rheumatic, rickety, ruining, ruinous, scorbutic,
   scrofulous, self-destructive, shut-in, sick person, spastic,
   styptic, subversionary, subversive, sufferer, suicidal, tabetic,
   tabid, terminal case, the sick, tubercular, tuberculous,
   tumorigenic, tumorous, valetudinarian, vandalic, vandalish,
   vandalistic, wasteful, wasting, withering