a person who is eccentric, unrealistic, or fanatical.
eccentric; impractical; fanatical: crackpot ideas.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use crackpot in a sentence
Depending on who you ask, JFK cemented Stone’s legacy as either a firebrand willing to speak truth to power, or a crackpot lost in a haze of make-believe.Oliver Stone Yet Again Makes the Case That the CIA Killed JFK | Nick Schager | November 22, 2021 | The Daily Beast
There’s denial that it’s happening, there are crackpot theories about what’s going on.
Yet disrupting the proceedings or diverting their focus toward some crackpot right-wing media obsession carries its own risks, precisely because the matter is so momentous.Nancy Pelosi has backed Kevin McCarthy into a corner | Greg Sargent | July 2, 2021 | Washington Post
It can be easy to write off our conspiracy theorist friends and relatives as crackpots, but science shows things are far more nuanced than that.
The society, founded in 1958, was fiercely anti-communist — and fond of crackpot theories.Long before QAnon, Ronald Reagan and the GOP purged John Birch extremists from the party | Erick Trickey | January 15, 2021 | Washington Post
Indeed, Wolf's journey to the crackpot fringe was completed a long time ago.From ISIS to Ebola, What Has Made Naomi Wolf So Paranoid? | Michael Moynihan | October 11, 2014 | THE DAILY BEAST
In small steps, the crackpot architectural ideas of the past are becoming built parts of our cities.
That hardly sounds like some fire-breathing hard-right crackpot.T.W. Shannon Is a Sign of Things to Come in the GOP | Ron Christie | June 26, 2014 | THE DAILY BEAST
At an unaccredited college in Utah that was founded by acolytes of right-wing conspiracy-theorist crackpot Cleon Skousen.Various Bits of Romney-Ryan Bashing All Rolled Into One Post! | Michael Tomasky | October 11, 2012 | THE DAILY BEAST
But according to the Serious Men and Women of Washington, the FRC is not a crackpot outfit.Why Must We Take the Family Research Council Seriously? | Michael Tomasky | September 17, 2012 | THE DAILY BEAST
Projective telepathy had only been a crackpot's idea back then.The Penal Cluster | Ivar Jorgensen (AKA Randall Garrett)
Other machines began to integrate crackpot reports of things sighted in divers places.The Invaders | William Fitzgerald Jenkins
Calmly they accepted their rise in the world as being due to one of their local townspeople, a crackpot professor.And Then the Town Took Off | Richard Wilson
She more or less considered him a crackpot, as far as I remember, you see.Warren Commission (9 of 26): Hearings Vol. IX (of 15) | The President's Commission on the Assassination of President Kennedy
crackpot minorities object loudly at being portrayed in films they don't like.Reel Life Films | Samuel Kimball Merwin
British Dictionary definitions for crackpot
an eccentric person; crank
(usually prenominal) eccentric; crazy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012