incurious

from WordNet (r) 3.0 (2006)

incurious
    adj 1: showing absence of intellectual inquisitiveness or
           natural curiosity; "strangely incurious about the cause
           of the political upheaval surrounding them" [ant:
           {curious}]

from The Collaborative International Dictionary of English v.0.48

Incurious \In*cu"ri*ous\, a. [L. incuriosus: cf. F. incurieux.
   See {In-} not, and {Curious}.]
   Not curious or inquisitive; without care for or interest in;
   inattentive; careless; negligent; heedless.
   [1913 Webster]

         Carelessnesses and incurious deportments toward their
         children.                                --Jer. Taylor.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

61 Moby Thesaurus words for "incurious":
      absent, absentminded, abstracted, aloof, apathetic, ataractic,
      blase, bored, careless, casual, detached, devil-may-care,
      disinterested, dispassionate, disregardant, disregardful, distant,
      distracted, distrait, distraught, easygoing, heedless, impassive,
      inadvertent, inattentive, indifferent, inexcitable, inobservant,
      insouciant, lackadaisical, listless, mindless, negligent,
      nonchalant, perfunctory, phlegmatic, pococurante, preoccupied,
      reckless, regardless, remote, stolid, thoughtless, turned-off,
      unanxious, unconcerned, undiscriminating, unheedful, unheeding,
      uninquiring, uninterested, uninvolved, unmarking, unmindful,
      unnoticing, unnoting, unobservant, unobserving, unremarking,
      unsolicitous, withdrawn