Meaning of the word crackpot in English

What does crackpot mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

crackpot

US /ˈkræk.pɑːt/
UK /ˈkræk.pɒt/

Noun

a person who has strange, unconventional, or foolish ideas or theories

Example:
His new theory about aliens building the pyramids sounds like something a crackpot would say.
Don't listen to that old crackpot; he's always coming up with wild ideas.

Adjective

having strange, unconventional, or foolish ideas or theories

Example:
He has some really crackpot ideas about how to solve the world's problems.
The newspaper dismissed his claims as crackpot theories.