unaffectionate

from WordNet (r) 3.0 (2006)

unaffectionate
    adj 1: lacking affection or warm feeling; "an uncaring person"
           [syn: {detached}, {unaffectionate}, {uncaring}]

from The Collaborative International Dictionary of English v.0.48

Unaffectionate \Unaffectionate\
   See {affectionate}.

from Moby Thesaurus II by Grady Ward, 1.0

62 Moby Thesaurus words for "unaffectionate":
      affectless, anesthetized, arctic, autistic, blunt, catatonic,
      chill, chilly, cold, cold as charity, cold-blooded, coldhearted,
      cool, disagreeable, dispassionate, drugged, dull, emotionally dead,
      emotionless, frigid, frosted, frosty, frozen, heartless, icy, ill,
      immovable, impassible, impassive, inexcitable, inhospitable,
      insusceptible, nonemotional, objective, obtuse, out of touch,
      passionless, self-absorbed, soulless, spiritless, unamiable,
      unbenign, unbenignant, uncompassionate, uncompassioned, uncordial,
      unemotional, unfeeling, ungenial, ungracious, unimpassioned,
      unimpressionable, unkind, unkindly, unloving, unpassionate,
      unresponding, unresponsive, unsusceptible, unsympathetic,
      unsympathizing, untouchable