1. 
[syn: belittling, deprecating, deprecative, deprecatory, depreciative, depreciatory, slighting]
2.  given to expressing disapproval; 
The Collaborative International Dictionary of English v.0.48:
Deprecative \Dep"re*ca*tive\ (d[e^]p"r[-e]*k[asl]*t[i^]v), a.
   [L. deprecativus: cf. F. d['e]pr['e]catif.]
   Serving to deprecate; deprecatory.
   [1913 Webster]
   Syn: belittling, derogatory, pejorative, disparaging,
        depreciative, deprecatory, depreciatory, detractive,
        detracting, slighting, denigratory, uncomplimentary.
        [PJC] -- Dep"re*ca*tive*ly, adv.
        [1913 Webster]
WordNet (r) 3.0 (2006):
deprecative
    adj 1: tending to diminish or disparage; "belittling comments";
           "managed a deprecating smile at the compliment";
           "deprecatory remarks about the book"; "a slighting
           remark" [syn: belittling, deprecating, deprecative,
           deprecatory, depreciative, depreciatory,
           slighting]
    2: given to expressing disapproval