• (a.) Not residing in a particular place, on one`s own estate, or in one`s proper place; as, a nonresident clergyman or proprietor of lands. • (n.) A nonresident person; one who does not reside in the State or jurisdiction. • (n.) A nonresident person; one who does not reside in the State or jurisdiction. • (a.) Not residing in...
Someone who is not resident in the UK.
Non·res'i·dent adjective Not residing in a particular place, on one's own estate, or in one's proper place; as, a nonresident clergyman or proprietor of lands. 
[adj] - not living in a particular place or owned by permanent residents
adjective not living in a particular place or owned by permanent residents; `nonresident students who commute to classes`; `nonresident real estate`
not resident in a particular place. · not residing where official duties require a person to reside.