undocumented

[JustiniaNex]

lacking necessary documents (as for e.g. permission to live or work in a country)

[Rihanna]

not having the documents to support a claim

[rekha patel]

Undocumented typically refers to something or someone that lacks the necessary official documents or records. This can refer to immigrants without legal permission to live in a specific country, an action or process not officially recorded, or things not supported with necessary written evidence. It is often used in the context where proper authorization, approval, or paperwork is required or expected but is absent.