魯ろ鈍どんろどんじ字FuriganaMeanings1nounstupidity; imbecility; dullnessLiterary 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