
Imbecile
Informal Use
Used casually among friends, but it can be very hurtful and offensive if used improperly.

Dude, you're such an imbecile for losing your keys again!
Negative Connotation
Conveys a strong negative feeling about someone's behavior or intelligence.

Only an imbecile would trust a complete stranger with all their money.
Avoid in Formality
Inappropriate in formal or polite contexts such as work, school, or when speaking with strangers.

I refrained from calling him an imbecile and chose a more diplomatic term.
Compare with
DoltDullardFoolIdiotMoronSimpleton
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