underdocumented
adjEtymology From under- + documented.
1
Having inadequate documentation.
- Copeland, like most slaves, is woefully underdocumented; we know that she somehow became literate, migrated to New York in the 1880s and found a job in domestic service.2009 March 8, Baz Dreisinger, “A Transracial Man”, in New York Times: