undocumented

adjective

un·​doc·​u·​ment·​ed ən-ˈdä-kyə-ˌmen-təd How to pronounce undocumented (audio)
Synonyms of undocumentednext
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The agents were looking for undocumented immigrants. Terry Collins, USA Today, 18 May 2026 The undocumented parents of this family were deported in February 2025. Nicole Acevedo, NBC news, 18 May 2026 Data from the report shows that undocumented students who attend newcomers academies in the United States on average perform lower on standardized tests, experience more mental health and behavioral issues and have lower post-secondary aspirations than those who attend mainstream campuses. Fort Worth Star-Telegram, 15 May 2026 Much of an organization's intelligence remains undocumented. Syed Ahmad, Forbes.com, 15 May 2026 See All Example Sentences for undocumented

Word History

First Known Use

1867, in the meaning defined above

Time Traveler
The first known use of undocumented was in 1867

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Cite this Entry

“Undocumented.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undocumented. Accessed 21 May. 2026.

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