unionized vs nonionic

unionized and nonionic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unionized	No	Yes	No	No
nonionic	No	Yes	No	No

As adjectives, unionized and nonionic are synonyms defined as:

Other synonyms of unionized include nonionised, nonionized, unionised.

unionized (adjective)	nonionic (adjective)
not converted into ions	not converted into ions
being a member of or formed into a labor union	not ionic