Undocumented workers in particular have long been considered "unorganizable, " according to Ruth Milkman, who heads UCLA's Institute for Research on Labor and Employment.
NPR: Labor Unions Now Recruiting Immigrant Workers
unorganizable:
un- +? organizable
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。