Synonyms of the word

undocumented

• adj. Lacking instructions or reference material.
• adj. Not having official documents that provide identification, authorization, etc.
• adj. (of a person) Not having official documentation required to legally enter, reside in, or work in a country.
• n. (informal) Synonym of undocumented immigrant.

unregistered

• adj. Not registered.
• v. simple past tense and past participle of unregister.

unsupported

• adj. Without physical support.
• adj. For which support or help is not available.
• adj. Without confirmation from a credible source, without verifying support.