nonuser

plural nonusers · alternative non-user

1. A person who is not a user (of drugs, a computer system, etc.).
2. lawNeglect or omission to use an easement or franchise or to assert a right.

   An office may be forfeited by mis-user or non-user.

   1765–1769, William Blackstone, Commentaries on the Laws of England, (please specify |book=I to IV), Oxford, Oxfordshire: […] Clarendon Press, →OCLC

   1 more example

   The subject of the forfeiture of corporate franchises by nonuser or misuser , was fully discussed in the case of The King v . Amery

   1826, James Kent, Commentaries on American Law