a person who questions the validity or authenticity of something purporting to be factual.
a person who maintains a doubting attitude, as toward values, plans, statements, or the character of others.
a person who doubts the truth of a religion, especially Christianity, or of important elements of it.
(initial capital letter)Philosophy.
a member of a philosophical school of ancient Greece, the earliest group of which consisted of Pyrrho and his followers, who maintained that real knowledge of things is impossible.
any later thinker who doubts or questions the possibility of real knowledge of any kind.
adjective
pertaining to skeptics or skepticism; skeptical.
(initial capital letter) pertaining to the Skeptics.
Origin of skeptic
1565–75; <Late Latin scepticus thoughtful, inquiring (in plural Scepticī the Skeptics) <Greek skeptikós, equivalent to sképt(esthai) to consider, examine (akin to skopeîn to look; see -scope) + -ikos-ic
Other skeptics say Section 230 allows platforms to profit from hosting misinformation and hate speech.
Why the most controversial US internet law is worth saving|Amy Nordrum|September 9, 2020|MIT Technology Review
The association with GM gives Nikola a much-needed credibility boost—the startup has battled skeptics of its technology and business model, particularly since its stock was publicly listed earlier this year.
Nikola stock surges 40% on General Motors partnership news|dzanemorris|September 8, 2020|Fortune
So it’s a little awkward that a county supervisor has positioned himself as the most high-profile local skeptic of the virus.
Morning Report: The Supervisor Elevating Coronavirus Skepticism|Voice of San Diego|August 21, 2020|Voice of San Diego
Since May, Desmond has positioned himself as the most high-profile skeptic of the coronavirus to hold local office.
Supervisor by Day, But a COVID-19 Skeptic on the Airwaves|Katy Stegall|August 20, 2020|Voice of San Diego
I called them “islands of fertility in the continent,” though some skeptics doubted that the lakes were really there.
He Found ‘Islands of Fertility’ Beneath Antarctica’s Ice|Steve Nadis|July 20, 2020|Quanta Magazine
Given this tiny pool of survivors, a skeptic might ask why the story of the Mandans should matter to the contemporary reader?
The Tribe at the Center of America: The Story of the Mandan|Andrew Graybill|March 11, 2014|DAILY BEAST
If you're a skeptic like me, this entire process sounds like one massive shake of the head from start to finish.
Hook Up Apps Have Gone Too Far|Charlotte Lytton|March 7, 2014|DAILY BEAST
In truth, I was a skeptic from day one, let the record show.
Republicans Move to the Center? Nope, They’re Crazier Than Ever|Michael Tomasky|August 21, 2013|DAILY BEAST
Abrams is a skeptic, which he is well within his rights to be (a position this writer shares).
Does Elliott Abrams Speak For American Jewish Leaders?|Ali Gharib|August 13, 2013|DAILY BEAST
I was a skeptic, but lo and behold, the Judiciary Committee actually acted like the old Senate for a week.
White People on Parade|Michael Tomasky|May 30, 2013|DAILY BEAST
The skeptic said that there was no mystery about it, as it merely "happened so."
Health, Healing, and Faith|Russell H. Conwell
"That must be why it feels so Greece-y to the touch," murmured the Skeptic; but, luckily, nobody heard him but myself.
A Court of Inquiry|Grace S. Richmond
He was a railler, a skeptic and a critic of religion and morality, but knew how to play the game to suit his interests.
Montreal 1535-1914 under the French Rgime|William Henry Atherton
Hepatica scrutinized the Skeptic's linen critically before she put it in.
A Court of Inquiry|Grace S. Richmond
"I wonder if we couldn't bring in a stepladder for her," murmured the Skeptic in my ear.