a mentally unbalanced or eccentric person; often, specif., a person who holds or is a proponent of a highly unorthodox or eccentric belief
Origin of crackpot; from cracked pot ; from crack + pot in obsolete sense, “cranium, brainpan”
by or characteristic of a crackpot: crackpot conspiracy theories
An eccentric person, especially one with bizarre ideas.
Foolish; harebrained: a crackpot notion.
Origin of crackpotcrack(ed) + pot1, skull (obsolete).
- (informal) Eccentric or impractical
- a crackpot idea