unionised vs unionized

unionised and unionized both are adjectives.

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

As adjectives, unionised and unionized are synonyms defined as:

Other synonyms of unionised include nonionic, nonionised, nonionized.

As adjectives, unionised and unionized are synonyms defined as:

Other synonyms of unionised include organised, organized.

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