The Collaborative International Dictionary of English v.0.48:

Differ \Dif"fer\, v. i. [imp. & p. p. Differed; p. pr. & vb.
   n. Differing.] [L. differre; dif- = dis- + ferre to bear,
   carry: cf. F. diff['e]rer. See 1st Bear, and cf. Defer,
   Delay.]
   1. To be or stand apart; to disagree; to be unlike; to be
      distinguished; -- with from.
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            One star differeth from another star in glory. --1
                                                  Cor. xv. 41.
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            Minds differ, as rivers differ.       --Macaulay.
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   2. To be of unlike or opposite opinion; to disagree in
      sentiment; -- often with from or with.
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   3. To have a difference, cause of variance, or quarrel; to
      dispute; to contend.
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            We 'll never differ with a crowded pit. --Rowe.

   Syn: To vary; disagree; dissent; dispute; contend; oppose;
        wrangle.

   Usage: -- To Differ with, Differ from. Both differ from
          and differ with are used in reference to opinions; as,
          "I differ from you or with you in that opinion." In
          all other cases, expressing simple unlikeness, differ
          from is used; as, these two persons or things differ
          entirely from each other.
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                Severely punished, not for differing from us in
                opinion, but for committing a nuisance.
                                                  --Macaulay.
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                Davidson, whom on a former occasion we quoted,
                to differ from him.               --M. Arnold.
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                Much as I differ from him concerning an
                essential part of the historic basis of
                religion.                         --Gladstone.
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                I differ with the honorable gentleman on that
                point.                            --Brougham.
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                If the honorable gentleman differs with me on
                that subject, I differ as heartily with him, and
                shall always rejoice to differ.   --Canning.
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Moby Thesaurus II by Grady Ward, 1.0:

115 Moby Thesaurus words for "differing":
   alienated, antagonistic, antiestablishment, antipathetic, assorted,
   at cross-purposes, at loggerheads, at odds, at odds with,
   at variance, at variance with, at war, averse, breakaway, clashing,
   colliding, conflicting, contradictory, contrary, contrasted,
   contrasting, counter-culture, cranky, cross, cursory, departing,
   deviating, deviative, different, differentiated, disaccordant,
   disagreeable, disagreeing, discordant, discrepant, discrete,
   discriminated, disharmonious, disinclined, disjoined, disobedient,
   disparate, disproportionate, dissentient, dissenting, dissident,
   dissimilar, dissonant, distinct, distinguished, divergent,
   diverging, divers, diverse, diversified, forced, fractious,
   grating, heterogeneous, hostile, immiscible, in disagreement,
   in opposition, inaccordant, incompatible, incongruous,
   inconsistent, inconsonant, indisposed, indocile, inharmonious,
   involuntary, irreconcilable, jangling, jarring, many, motley,
   multifarious, mutinous, negative, nonconforming, opposed, opposing,
   out of accord, out of whack, perfunctory, poles apart,
   poles asunder, recalcitrant, recusant, refractory, repugnant,
   resistant, sectarian, sectary, separate, separated, several, sulky,
   sullen, unconformable, uncongenial, unconsenting, underground,
   unequal, unharmonious, unlike, unwilling, variant, varied,
   variegated, various, varying, widely apart, worlds apart