unionized
un ion ized |ˈyo͞onyəˌnīzd ˈjunjənaɪzd | ▶adjective (of workers or their workplace ) belonging to, or having workers belonging to, a labor union: unionized factories.
unionized |ˈjuːniənʌɪzd |(also unionised ) ▶adjective (of workers or their workplace ) belonging to, or having workers belonging to, a trade union: unionized factories.