The Collaborative International Dictionary of English v.0.48:

Repugnance \Re*pug"nance\ (-nans), Repugnancy \Re*pug"nan*cy\
   (-nan-s?), n. [F. r['e]pugnance, L. repugnantia.]
   The state or condition of being repugnant; opposition;
   contrariety; especially, a strong instinctive antagonism;
   aversion; reluctance; unwillingness, as of mind, passions,
   principles, qualities, and the like.
   [1913 Webster]

         That which causes us to lose most of our time is the
         repugnance which we naturally have to labor. --Dryden.
   [1913 Webster]

         Let the foes quietly cut their throats,
         Without repugnancy.                      --Shak.
   [1913 Webster]

   Syn: Aversion; reluctance; unwillingness; dislike; antipathy;
        hatred; hostility; irreconcilableness; contrariety;
        inconsistency. See Dislike.
        [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

REPUGNANCY, contracts. That which in a contract, is inconsistent with
something already contracted for; as, for example, where a man by deed
grants twenty acres of land, excepting one, this latter clause is repugnant,
and is to be rejected. But if a farm or tract of land is conveyed by general
terms, in exception of any number of acres, or any particular lot, it is not
repugnant, but valid. 4 Pick. 54; Vide 3 Pick. 272; 6 Cowen, 677.



Bouvier's Law Dictionary, Revised 6th Ed (1856):

REPUGNANCY, pleading. Where the material facts stated in a declaration or
other pleading, are inconsistent one with another for example, where in an
action of trespass, the plaintiff declared for taking and carrying away
certain timber, lying in a certain place, for the completion of a house then
lately built; this declaration was considered bad, for repugnancy; for the
timber could not be for the building of a house already built. 1 Salk. 213.
     2. Repugnancy of immaterial facts, and what is merely redundant, and
which need not have been put into the sentence, and contradicting what was
before alleged, will not, in general, vitiate the pleading. Gilb. C. P. 131;
Co. Litt. 303 b; 10 East, R. 142; 1 Chit. Pl. 233. See Lawes, Pl. 64; Steph.
Pl. 378; Com. Dig. Abatement H 6; 1 Vin. Ab. 36; 19 Id. 45; Bac. Ab.
Amendment, &c. E 2 Bac. Ab. Pleas, Ac. I 4 Vin. Ab. h.t.