nonkin

noun

1. (plural)A person who is not one's relative.

   “When it is necessary to state an unpleasant truth or an opposing opinion, or to make a request of a nonkin, it is done in as pleasant a speech as possible.”

   “Table 3b: The general frequency of friendly contacts with in the same matriline and with nonkins in the group of Macaca arctoides.”

   “Among those who derive information related to work from personal contacts, nonkins, rather than kins, constitute the most important sources even for women.”