blockheadism

== English == === Etymology === From blockhead +‎ -ism. === Noun === blockheadism (countable and uncountable, plural blockheadisms) The character or behaviour of a blockhead; stupidity or idiocy. ==== Translations ==== === References === “blockheadism”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.