Definition of "idiotism" [id•i•ot•ism]

• Very severe mental retardation. (noun)

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• "What’s really scary for me is that Giertych is a professor of biology (BA and MA at Oxford, PhD at University of Toronto), and an active member of Institute of Dendrology of the Polish Academy of Sciences, who only recently stopped teaching (forest genetics and population genetics )… Who knows what kind of idiotism he promoted in the classroom, under the “scientific banner”."
• "Really, the presidential idiotism of George Bush should be curbed for the sanity and safety of the American people."
• "Third, this myth promotes useful idiotism as quite fashionable way of thinking."