[see -ISH.] The characteristic action, conduct or condition of a blockhead; stupidity.
1753. Smart, Notes to Hilliad, (R.). Though now reduced to that state of blockheadism.
1823. Blackw. Mag., XIV. 698. One of the most delightful pieces of self-satisfied blockheadism.
1843. Carlyle, Past & Pr., 46. They set no quackeries and blockheadisms anywhere to rule over us.
