Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR CRACKPOT

So that crackpot, Graham, had finally come up with something definite.

They dismissed him as a crackpot, too, if they heard about him at all.

Therefore, it wouldn't have happened—outside the crackpot fringe.

These had to be investigated—every lousy, crackpot one of them.

Projective telepathy had only been a crackpot's idea back then.

The Navy would not stretch regulations for a crackpot civilian.

Maybe the guy was a crackpot or phony, but it wouldn't hurt to hear his story.

The letter was dismissed as "crackpot," and no precautions were taken.

"This wasn't a crackpot idea," she said, eyeing him as if he were another log for the fire.

Dark eyes rigid, unfocused, behind them Jim's own image of a crackpot redhead who was Callista's friend.

WORD ORIGIN

"mentally unbalanced person," by 1900, probably from crack + pot (n.1) in a slang sense of "head." Cf. crack-brain "crazy fellow" (late 16c.). Earlier it was used in a slang sense "a small-time big-shot" (1883), and by medical doctors in reference to a "metallic chinking sometimes heard when percussion is made over a cavity which communicates with a bronchus."

MORE RELATED WORDS FOR CRACKPOT

crank

nouna person with an obsession
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.