- Stupid moron, the chances of me falling for anyone at this party were one in twenty million.
- I bet that those on the receiving end of such behaviour don't mind whether the villains are dubbed cretins or morons.
- Adam's a damn fool, a moron for not realising what he could be throwing away.
Early 20th century (as a medical term denoting an adult with a mental age of about 8–12): from Greek mōron, neuter of mōros 'foolish'.
Early use was as a medical term for an adult with a mental age of about 8–12. It comes from Greek mōron, the neuter of mōros ‘foolish’.