WordNet sense 1 (characteristic of or meant for a single person or thing):

separate, single, separate

WordNet sense 2 (not shared):

unshared

WordNet sense 3 (concerning one person exclusively):

private

WordNet sense 4 (concerning or affecting a particular person or his or her private life and personality):

personal

WordNet sense 5 (separate and distinct from others of the same kind):

case-by-case, item-by-item

WordNet sense 6 (free from external control and constraint):

independent

WordNet sense 7 (being a single and separate person or thing):

singular

WordNet sense 8 (considered individually):

several, respective

WordNet sense 9 (peculiar to the individual):

idiosyncratic

WordNet sense 10 (a human being):

mortal, person, somebody, someone, soul