What does pseudoscientist mean?
A pseudoscientist is someone who presents ideas, methods, or claims as scientific even though they are not grounded in reliable scientific evidence or accepted research practices. The word is commonly used to criticize figures who promote unsupported medical, historical, psychological, or technological theories while using scientific vocabulary or rhetorical appeals to credibility. In discussion, the label usually implies both a lack of sound methodology and a claim to scientific authority; it is not simply a polite substitute for saying that someone is wrong. The term can apply to prominent media personalities, authors, healers, inventors, or other public figures, but it should be used carefully because it is evaluative. It is also distinct from describing a field or method as pseudoscientific, a usage represented by the related adjective “pseudoscientific.”
nounA person who claims to follow scientific methods or principles but whose theories or conclusions are not supported by reliable scientific evidence. The term usually implies that the person presents claims as scientific even though they are speculative, unfounded, or based on non-scientific reasoning.
- A person who advances or promotes theories or practices presented as scientific but lacking adequate support from scientific methods or evidence.
"The article was criticized because it presented the claims of a pseudoscientist without examining the evidence behind them."
"The broadcaster was widely described as a pseudoscientist after promoting an unsupported medical theory."
"Careful research is essential when an author relies on the testimony of a pseudoscientist."
The regular plural is used for multiple people described in this way.
"Several pseudoscientists have promoted the unsupported claim online."
Calling someone a pseudoscientist turns the word's attention to the boundary between scientific inquiry and claims that merely borrow science's authority.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does pseudoscientist come from?
The word combines the combining form “pseudo-,” meaning false or spurious, with “scientist,” itself formed from “science.” The prefix comes through Latin and Greek roots associated with falsehood or deception, while “science” ultimately derives from Latin scientia, meaning knowledge. The combined noun developed in the modern period as a critical term for people who claim scientific authority without meeting accepted evidentiary standards.
Related word forms
How pseudoscientist is actually used
The term is generally critical and can be confrontational. It should be reserved for people whose claims are presented as scientific but fail to meet accepted standards of evidence and reasoning, rather than used merely to dismiss an unfamiliar or minority idea.
Easily confused with pseudoscientist
A scientist is a person who follows established scientific methods and evidence, whereas a pseudoscientist presents claims as scientific without a sound evidentiary basis.