de·​ni·​al·​ism di-ˈnī(-ə)l-ˌi-zəm How to pronounce denialism (audio)
: the practice of denying the existence, truth, or validity of something despite proof or strong evidence that it is real, true, or valid
This depressing tale is the latest incarnation of denialism, the systematic rejection of a body of science in favour of make-believe.Debora MacKenzie
He [Henry Puna] said climate change denialism jeopardised the future of Pacific countries: "Some are not willing to accept the stark realities."Ben Doherty
The problem of vaccine denialism is closely tied to the problem of information and authority in the digital age. People prone to skepticism can cover themselves with layers of pseudo-science and conspiracy theories that thicken and harden like papier mache.Michael Gerson
Getting accurate information across in the face of this science denialism is something of a minefield, as there is evidence that attempts to correct misinformation may backfire, further entrenching the beliefs of science deniers instead.Cathleen O'Grady

Examples of denialism in a Sentence

Recent Examples on the Web He was also troubled by rising Holocaust ignorance and denialism in America and, in the wake of the fall of the Berlin Wall in 1989, hate abroad. Scott Feinberg, The Hollywood Reporter, 21 Feb. 2024 Staff Pick: Climate denialism takes a turn Researchers used artificial intelligence to sift through more 12,000 climate-denying YouTube videos and found a fascinating shift in their messaging. Elizabeth Robinson, NBC News, 17 Jan. 2024 And YouTube confirmed that some of these videos featured climate denialism that YouTube already explicitly bans. Ashley Belanger, Ars Technica, 16 Jan. 2024 Further, the report found that X had the lowest takedown rate of all the platforms, with X only removing a measly two percent of the posts flagged for violating its guidelines on violent event denialism. Ej Dickson, Rolling Stone, 24 Jan. 2024 The Republicans’ modern-day political alchemist has, in just three years, made 2020-election denialism—and its corollary set of falsehoods about January 6th—a core tenet in the Republican catechism. Susan B. Glasser, The New Yorker, 4 Jan. 2024 Did Spielberg’s characteristic emphasis on the positive, his desire to tell a story of unlikely heroism, perseverance and courage, amount to a form of artistic denialism — a failure to confront the full, horrific magnitude of the Holocaust in cinematic terms? Justin Chang, Los Angeles Times, 14 Dec. 2023 Christie centered his campaign on defeating the former president and wasn't shy about calling him out, including for his election denialism, mounting legal woes and involvement in the Jan. 6, 2021, insurrection. Brittany Gaddy, ABC News, 10 Jan. 2024 Shortly after, President Joe Biden released a statement on Twitter denouncing Holocaust denialism. Abbey White, The Hollywood Reporter, 26 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'denialism.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


denial + -ism

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of denialism was in 1874

Dictionary Entries Near denialism

Cite this Entry

“Denialism.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2024.

Last Updated: - Updated example sentences
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