The Collaborative International Dictionary of English v.0.48:

Reconcilable \Rec"on*ci`la*ble\ (r?k"?n*s?`l?*b'l), a. [Cf. F.
   r['e]conciliable.]
   Capable of being reconciled; as, reconcilable adversaries; an
   act reconciable with previous acts.
   [1913 Webster]

         The different accounts of the numbers of ships are
         reconcilable.                            --Arbuthnot.
   [1913 Webster] -- Rec"on*ci`la*ble*ness, n. --
   Rec"on*ci`la*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

reconcilable
    adj 1: capable of being reconciled; "her way of thinking is
           reconcilable with mine" [ant: irreconcilable,
           unreconcilable]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "reconcilable":
   accordant, affirmative, agreeable, agreeing, answerable, at one,
   coexistent, coexisting, coherent, coincident, coinciding,
   commensurate, compatible, concordant, concurring, conformable,
   congenial, congruent, congruous, consentaneous, consentient,
   consistent, consonant, cooperating, cooperative, correspondent,
   corresponding, en rapport, equivalent, harmonious, in accord,
   in agreement, in rapport, in sync, in synchronization,
   inaccordance, inharmony, like-minded, of a piece, of like mind,
   of one mind, on all fours, positive, proportionate,
   self-consistent, symbiotic, synchronized, synchronous, unanimous,
   uniform, unisonant, unisonous