noun
idiot
ID-ee-ut/ˈɪdiət/
An insulting term for a foolish or stupid person.
He feels like an idiot for trying to fill a bucket full of holes.

Etymology
Greek idiōtēs described a private person or layman rather than a professional. Its patronizing use for someone unskilled or ignorant led toward the modern insult for a foolish person.
In context
when you were 17 you were just an idiot and you got fired from a job because you stopped showing up because you thought your boss was a jerk
More examples
- I was an idiot to leave my keys inside.
- She told him not to call his classmate an idiot.
- Only an idiot would ignore that obvious warning, he complained.
Forms
idiot · idiots