魯ろ鈍どん

noun

stupidity; imbecility; dullness

Literary and somewhat archaic term for dullness or stupidity. Rare in everyday speech; more common in classical or formal written contexts.

• 彼かれは自みずからの魯ろ鈍どんを恥はじた。

  He was ashamed of his own stupidity.

• その批ひ評ひょうは作さく品ひんの魯ろ鈍どんさを指し摘てきしている。

  The critique points out the dullness of the work.