A fallacy where someone dismisses all arguments of a person by labeling them a "postmodernist." The label functions as a dismissal: if you're postmodernist, your arguments are automatically confused, relativist, or nihilistic. The fallacy lies in treating the label as refutation, ignoring that postmodernism is a diverse tradition with serious thinkers and that labeling someone doesn't engage their actual claims. It's intellectual dismissal by category association.
"I mentioned that knowledge might be socially constructed. Response: 'Oh, you're one of those postmodernists.' That's Postmodernista Es Fallacy—using the label to dismiss, not engaging the claim. Social construction of knowledge is a serious position; calling it 'postmodernist' doesn't refute it. It just shows you'd rather name-call than think."
by Dumu The Void March 2, 2026
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