cretin
🇺🇸
/ˈkriːtn/
🇬🇧
/ˈkretɪn/
A person who is considered very unintelligent.
Whoever left the gate open was a real cretin.
A person with severe intellectual disability due to a lack of thyroid hormone during childhood.
The term 'cretin' historically referred to individuals with this medical condition, but it is now considered offensive.