nonresistant vs unresistant

nonresistant and unresistant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nonresistant	No	Yes	No	No
unresistant	No	Yes	No	No

As adjectives, nonresistant and unresistant are synonyms defined as:

nonresistant and unresistant: (often followed by `to') likely to be affected with

Other synonyms of nonresistant include liable, nonimmune.

nonresistant (adjective)	unresistant (adjective)
offering no resistance, compliant	(often followed by `to') likely to be affected with
(often followed by `to') likely to be affected with