adjective. Of, involving, or suggestive of incest.

adjective. Having committed incest.

adjective. Improperly intimate or interconnected.

Guilty of incest: as, an incestuous person.

Involving the crime of incest: as, an incestuous connection.

adjective. Pertaining to or engaging in incest.

adjective. Characterized by mutual relationships that are intimate and exclusive to the detriment of outsiders.

adjective. relating to or involving incest

adjective. resembling incest as by excessive intimacy

"Fred Siegel, a historian at the conservative-leaning Manhattan Institute, has written of the "New Tammany Hall," which he describes as the incestuous alliance between public officials and labor."

incestuously  

adulterous  carnal  consensual  extramarital  federative