1) Exogamic 2) Outbred 1) Exogamic 
• (a.) Relating to exogamy; marrying outside of the limits of one`s own tribe; -- opposed to endogenous.
Ex·og'a·mous adjective [ Exo- + Greek ... marriage.] Relating to exogamy; marrying outside of the limits of one's own tribe; -- opposed to endogenous . 
[adj] - (biology) 2. [adj] - (anthropology)
exogamy, exogamous, exogamic 1. The custom by which a man is bound to take a wife outside his own clan or group. 2. Sexual reproduction by means of conjugation of two gametes of different ancestry, as in certain protozoan species.