Source : WordNet®

unionized
     adj 1: not converted into ions [syn: {nonionized}, {nonionised}, {unionised},
             {nonionic}] [ant: {ionized}]
     2: being a member of or formed into a labor union; "organized
        labor"; "unionized workers"; "a unionized shop" [syn: {organized},
         {organised}, {unionised}]