undocumented

adjective

un·​doc·​u·​ment·​ed ən-ˈdä-kyə-ˌmen-təd 

: not documented: such as

a

: not supported by documentary evidence

undocumented expenditures

b

: lacking documents required for legal immigration or residence

undocumented workers

Examples of undocumented in a Sentence

The company cannot reimburse you for undocumented travel expenses.

Recent Examples on the Web

Progressive lawmakers had pushed hard for state leaders to protect health care for undocumented immigrants. — Stephen Hobbs, Sacbee.com, 30 June 2026

This phrase has become a rallying cry for activists who say that undocumented migrants and other foreigners in South Africa have taken away jobs from those who were born there. — Rebecca Schneid, Time, 1 July 2026

Trump signed an executive order on the first day of his second term to limit citizenship to children born to citizens or legal permanent residents, rather than tourists or undocumented immigrants. — Maureen Groppe, USA Today, 1 July 2026

Because Perez Garcia was an undocumented immigrant who had previously been deported. — Carolyn Komatsoulis updated July 2, Idaho Statesman, 2 July 2026

Word History

First Known Use

1867, in the meaning defined above