antipathetic vs loath

antipathetic and loath both are adjectives.

Word	Noun	Adjective	Verb	Adverb
antipathetic	No	Yes	No	No
loath	No	Yes	No	No

As adjectives, antipathetic and loath are synonyms defined as:

Other synonyms of antipathetic include antipathetical, averse, indisposed, loth.

antipathetic (adjective)	loath (adjective)
(usually followed by `to') strongly opposed	(usually followed by `to') strongly opposed
characterized by antagonism or antipathy	unwillingness to do something contrary to your custom