The phrase "undocumented workers" refers to people who are living and working in a country without proper legal authorization or official documents, such as visas. Full definition
It is difficult to establish absolute figures, since a large number of undocumented workers go overseas through irregular channels and may not be recorded as workers. (globaleducationmagazine.com)
Let him know that the candidate supports penalties on businesses that hire undocumented workers. (epolitics.com)
Benefits are available to full - and part - time workers as well as temporary, immigrant, and even undocumented workers. (trustedchoice.com)