The rhetorical move of accusing someone of being "delusional" as a way of dismissing their perceptions, experiences, or beliefs without engagement. The accusation positions the target as mentally unstable, their views as symptoms rather than claims. The fallacy lies in using the psychiatric label as a refutation—as if naming a pathology does the work of argument. But even people with delusions can have valid perceptions; more importantly, using "delusional" as a casual dismissal trivializes real mental health issues while avoiding intellectual engagement.
"I shared my near-death experience and what I learned from it. Response: 'You're delusional—that's not real.' That's You-Are-Delusional Fallacy—using a psychiatric label to dismiss an experience without engagement. Maybe it was real; maybe it was brain chemistry; maybe it was something else. But calling me delusional doesn't address any of that—it just ends the conversation while making you feel clinical."
by Dumu The Void February 28, 2026
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