averse vs loath

averse and loath both are adjectives.

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

As adjectives, averse and loath are synonyms defined as:

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

averse (adjective)	loath (adjective)
(usually followed by `to') strongly opposed	(usually followed by `to') strongly opposed
	unwillingness to do something contrary to your custom