The Collaborative International Dictionary of English v.0.48:

Afflictive \Af*flic"tive\, a. [Cf. F. afflictif.]
   Giving pain; causing continued or repeated pain or grief;
   distressing. "Jove's afflictive hand." --Pope.
   [1913 Webster]

         Spreads slow disease, and darts afflictive pain.
                                                  --Prior.
   [1913 Webster]

WordNet (r) 3.0 (2006):

afflictive
    adj 1: causing misery or pain or distress; "it was a sore trial
           to him"; "the painful process of growing up" [syn:
           afflictive, painful, sore]

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "afflictive":
   aching, algetic, calamitous, dire, distasteful, distressing,
   galling, grievous, heartbreaking, hurtful, hurting, lamentable,
   painful, regrettable, sore, unfortunate, unpalatable, woeful