Of or relating to antipathy; showing a natural aversion or strong dislike.
From anti- (against) + -pathic (from Greek pathos, relating to feeling or emotion). A shorter, more direct alternative to antipathetical, this form became preferred in scientific and medical contexts especially.
In medical terminology, -pathic relates to disease (like psychopathic), but antipathic predates that usage and means something opposed to feeling—it's an earlier layer of English that got buried under later medical jargon.
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