|Adj.||1.||registered - (of animals) officially recorded with or certified by a recognized breed association; especially in a stud book; "a registered Percheron"|
unregistered - (of animals) not recorded with or certified by an official breed association; "unregistered dairy cattle"
|2.||registered - listed or recorded officially; "record is made of `registered mail' at each point on its route to assure safe delivery"; "registered bonds"|
unregistered - not registered; "an unregistered citizen"
|3.||registered - (of a boat or vessel) furnished with necessary official documents specifying ownership etc|