The Collaborative International Dictionary of English v.0.48:

Uncharitable \Un*char"i*ta*ble\, a.
   Not charitable; contrary to charity; severe in judging;
   harsh; censorious; as, uncharitable opinions or zeal.
   --Addison. -- Un*char"i*ta*ble*ness, n. --
   Un*char"i*ta*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

uncharitable
    adj 1: lacking love and generosity; "all pious words and
           uncharitable deeds"- Charles Reade [ant: charitable]

Moby Thesaurus II by Grady Ward, 1.0:

41 Moby Thesaurus words for "uncharitable":
   authoritarian, bigot, bigoted, borne, closed, constricted, cramped,
   creedbound, deaf, deaf to reason, fanatical, hidebound, illiberal,
   insular, little, little-minded, mean, mean-minded, mean-spirited,
   narrow, narrow-hearted, narrow-minded, narrow-souled,
   narrow-spirited, nearsighted, parochial, petty, provincial,
   purblind, shortsighted, small, small-minded, straitlaced, stuffy,
   unaltruistic, unbeneficent, unbenevolent, uncatholic, ungenerous,
   unliberal, unphilanthropic