antipathetical vs antagonistic

antipathetical and antagonistic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
antipathetical	No	Yes	No	No
antagonistic	No	Yes	No	No

As adjectives, antipathetical and antagonistic are synonyms defined as:

antipathetical and antagonistic: characterized by antagonism or antipathy

Other synonyms of antipathetical include antipathetic.

antipathetical (adjective)	antagonistic (adjective)
(usually followed by `to') strongly opposed	arousing animosity or hostility
characterized by antagonism or antipathy	used especially of drugs or muscles that counteract or neutralize each other's effect
	characterized by antagonism or antipathy
	incapable of harmonious association
	indicating opposition or resistance