human
Is it okay to use the word "stupid" when arguing with a co-worker?
assistant
It depends on your relationship with them, and how much you want to get along. If you are trying to be respectful, then I would recommend not using that word. However, if they have been disrespectful to you in some way, or if you’re just having an argument about something, then I think it is fine to say “You are stupid” as part of your response.