adj.
Pronunciation: in- ' ses-ch ə -w ə s, - ' sesh-
Function: adjective
Date: 1532
1 : constituting or involving incest
2 : guilty of incest
3 : excessively or improperly intimate or exclusive <mainstream fashion magazines have an incestuous relationship with advertisers ― Guy Trebay>
– in · ces · tu · ous · ly adverb
– in · ces · tu · ous · ness noun