incestuous

adjective

in·​ces·​tu·​ous in-ˈses-chə-wəs 

-ˈsesh-

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, and that undermines integrity."

—Ike Ude

incestuously adverb

incestuousness noun

Examples of incestuous in a Sentence

There were rumors that the father and daughter had had an incestuous relationship.

Recent Examples on the Web

There used to be a kind of inbred, incestuous quality to Hollywood that was actually good. —Maer Roshan, HollywoodReporter, 21 May 2025

While Emily is awake but unable to move, Charity takes it upon herself to give her sister pleasure in a horrifying act of incestuous rape. —Louis Peitzman, Vulture, 2 May 2025

After a week of toxic friendships, incestuous threesomes, suspicious billionaires, and lots and lots of monkeys, the guests have officially checked out of The White Lotus Thailand. —Meg Walters, Glamour, 11 Apr. 2025

One of the earliest examples in film was Pier Paolo Pasolini's 1975 film Salò, or the 120 Days of Sodom, which depicted a father-daughter incestuous relationship. —Dory Jackson, People.com, 5 May 2025

Word History

First Known Use

1532, in the meaning defined at sense 1

Rhymes for incestuous

• tempestuous

Kids Definition

incestuous

adjective

in·​ces·​tu·​ous in-ˈses-chə-wəs 

1

: being or involving incest

2

: guilty of incest

incestuously adverb

Medical Definition

incestuous

adjective

in·​ces·​tu·​ous in-ˈses(h)-chə-wəs 

1

: constituting or involving incest

2

: of, relating to, or guilty of incest

infantile incestuous wishes of the Oedipus complex