in·​ces·​tu·​ous | \in-ˈses-chə-wəs, -ˈsesh-\

Definition of incestuous 

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

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Other Words from incestuous

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

What in many ways is an episode that showcases the incestuous world of New York politics — the quartet of Donovan, Grimm, Molinari and Trump have personal relationships that go back decades — now has become an issue of national import. James Hohmann, Washington Post, "The Daily 202: Trump is losing the debate over splitting up immigrant families," 15 June 2018 Welcome to the small, incestuous world of Bachelor Nation, Becca, where former contestants often date contestants from other shows. Lisa Bonos,, "Can smashing a car heal a broken heart? The best, worst and weirdest moments from 'The Bachelorette'," 5 June 2018 Indicative of the incestuous relationship between Trump and Fox, the job Shine assumed last week had reportedly been offered earlier in the year to Laura Ingraham, now the 10 p.m. host on Fox. David Zurawik,, "Trump's TV messaging machine not looking quite so mighty these days," 12 July 2018 Along the way, the reader gets a lesson in the intricate and incestuous marriages of not just the Russian royal family but all the houses of Europe. Mary Cadden, USA TODAY, "Empress Maria heads juicy Russian cast in historical novel about the Romanovs," 12 July 2018 This deep state is one huge, giant incestuous, corrupt swamp. Fox News, "Hannity: Another stinging setback for the special counsel," 17 May 2018 Katie and Steven Pladl had been accused of having an incestuous relationship by police in Virginia. Nicholas Rondinone,, "Motive, Details Emerge In New Milford Murder-Suicide Incest Case," 13 Apr. 2018 The level of obstruction and protection, the incestuous nature of the relationships, this is beyond disgraceful. Fox News, "Hannity: President Trump is on a tear, enacting his agenda," 4 Apr. 2018 That often-incestuous relationship was laid bare with the explosive revelations of 2016: The president’s confidante, Choi Soon-sil, was accused of extracting bribes from the conglomerates while promising them favorable treatment. Anna Fifield, Washington Post, "Samsung heir released from prison after appeal against bribery conviction," 5 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'incestuous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of incestuous

1532, in the meaning defined at sense 1

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in charge of

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The first known use of incestuous was in 1532

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English Language Learners Definition of incestuous

: involving sexual intercourse between closely related people : involving incest


in·​ces·​tu·​ous | \in-ˈses(h)-chə-wəs \

Medical Definition of incestuous 

1 : constituting or involving incest

2 : of, relating to, or guilty of incest infantile incestuous wishes of the Oedipus complex

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by force of circumstances

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