1.
relating to or involving a sexual relationship between two people who are considered, for moral or genetic reasons, too closely related to have such a relationship
2.
having had a sexual relationship with somebody considered to be too close a relative
3.
unhealthily intimate or interconnected, especially so as to exclude the involvement or influence of others
5.
not good because of always involving the same group of people
1.
relating to or involving a sexual relationship between two people who are considered, for moral or genetic reasons, too closely related to have such a relationship
2.
having had a sexual relationship with somebody considered to be too close a relative
3.
unhealthily intimate or interconnected, especially so as to exclude the involvement or influence of others
5.
not good because of always involving the same group of people