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 crackpotfrom 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) pot 1 skull (obsolete)
- (informal) Eccentric or impractical
- a crackpot idea