
Idiot
Casual Insult
Used casually among friends, it might be less offensive but still be careful with usage.

You forgot the tickets? You're such an idiot!
Negative Connotation
While sometimes playful, it's essentially negative and can hurt feelings.

Calling someone an idiot can be very hurtful.
Not Professional
Avoid using 'idiot' in professional or formal settings as it's inappropriate.

In a business meeting, never call a colleague an idiot.
Compare with
BlockheadDoltDullardDunceFoolIgnoramusImbecileMoronSimpleton
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