Incompatible \In`com*pat"i*ble\, a. [Pref. in- not + compatible:
   cf. F. incompatible.] [It was formerly sometimes written
   incompetible.]
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   1. Not compatible; so differing as to be incapable of
      harmonious combination or coexistence; inconsistent in
      thought or being; irreconcilably disagreeing; as, persons
      of incompatible tempers; incompatible colors, desires,
      ambition.
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            A strength and obduracy of character incompatible
            with his meek and innocent nature.    --Southey.
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   2. (Chem.) Incapable of being together without mutual
      reaction or decomposition, as certain medicines.
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   Incompatible terms (Logic), terms which can not be combined
      in thought.

   Syn: Inconsistent; incongruous; dissimilar; irreconcilable;
        unsuitable; disagreeing; inharmonious; discordant;
        repugnant; contradictory. See Inconsistent.
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Incompetible \In`com*pet"i*ble\, a.
   See Incompatible.
   [1913 Webster]