undocumented (not comparable)
- Lacking documentation.
- Undocumented software can be very hard to learn to use.
- Not having the documents to support a claim.
- Not having official documentation required to enter, live or work in a country.
- 1861, United States, War Department - Annual Reports
- On arrival from a foreign port, undocumented foreign-built vessels, if laden with goods, wares or merchandise, may, with their cargoes, be subject to forfeiture.
not having official documentation in a country