alieni juris

[ ey-lahy-ee-nahy joo r-is, ey-lee- ]
/ ˌeɪ laɪˈi naɪ ˈdʒʊər ɪs, ˌeɪ li- /

adjective Law.

under the control of another, as a lunatic or infant.
Compare sui juris.

Origin of alieni juris

< Latin: literally, of another's law