Adjective
Not owned; having no owner.
Not acknowledged; not avowed.
Source: Webster's dictionaryIt follows then that each person justly owns whatever previously unowned resources he appropriates or "mixes his labor with". Source: Internet
Monopoly" is rolled while there are unowned properties, the player advances forward to the nearest one. Source: Internet
Properties If the player lands on an unowned property, whether street, railroad, or utility, they can buy the property for its listed purchase price. Source: Internet
They usually seek to protect commonly owned or unowned resources for future generations. Source: Internet