Webster's Revised Unabridged Dictionary · 1913

Repugnance

Repugnance (-nans) , noun

[French répugnance, Latin 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.
That which causes us to lose most of our time is the repugnance which we naturally have to labor. — Dryden
Let the foes quietly cut their throats, Without repugnancy. — Shakespeare

Also: Repugnancy