What does skepticism mean?
Skepticism is the habit or attitude of questioning claims rather than accepting them automatically. In everyday use, it can refer to a particular doubt—for example, skepticism about a product claim or a government account—or to a broader disposition to seek evidence and consider alternatives. Its connotation depends on context: healthy skepticism can signal careful reasoning and intellectual independence, while skepticism used dismissively may suggest resistance to new ideas. In philosophy, skepticism names a family of positions concerned with the limits of knowledge and the possibility of certainty. The word is also associated with ancient Greek inquiry, in which competing arguments were used to test claims and reveal weaknesses in reasoning. Skepticism is therefore useful for describing not only distrust, but also a disciplined willingness to examine assumptions. Its clearest common opposite is credulity, the willingness to believe claims without sufficient evidence. In careful use, skepticism marks a difference between constructive questioning and simple opposition or hostility.
nounAn attitude of doubt or questioning toward a claim, belief, or proposal, especially one suspected of being exaggerated or unreliable.
- An attitude, tendency, or expression of doubt about a claim, belief, or proposed explanation.
- A philosophical position concerning the limits of human knowledge and the possibility of certainty.
"She approached the advertising claims with healthy skepticism and checked the evidence for herself."
"The proposal met with widespread skepticism because no reliable evidence supported it."
"Philosophical skepticism asks whether our beliefs can ever be justified with complete certainty."
The regular plural is grammatically possible but uncommon; skepticism is normally used as an uncountable noun.
"The forum aired a number of skepticisms about the new policy."
Skepticism began not as simple distrust, but as disciplined inquiry: ancient skeptics tested claims by carefully exposing weaknesses in arguments.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does skepticism come from?
Skepticism descends from Latin skepticismus and ultimately from Greek skeptēmos, meaning inquiry or examination, which is associated with skeptesthai, “to examine or inquire.” The word entered modern English during the early modern period and developed both general and philosophical senses. English skeptic, skeptical, skeptically, and the British-spelled sceptic belong to the same etymological family.
Related word forms
How skepticism is actually used
Skepticism can be neutral and intellectually constructive, especially when described as healthy, or negative when it implies persistent rejection of information. The standard US spelling is skepticism, while scepticism is standard in British English; their pronunciations are essentially the same.
Easily confused with skepticism
Skepticism is the attitude of doubting or questioning claims, whereas a skeptic is a person who holds or expresses such doubts.