駑ど鈍どん

Meanings

Rare literary term for a person who is slow-witted or lacking in intelligence. Not used in everyday conversation; more common synonyms include 愚か (おろか) or 鈍い (にぶい).

彼かれは自みずからを駑ど鈍どんと称しょうしたが、実じっ際さいは鋭するどい洞どう察さつ力りょくを持もっていた。
He called himself dull-witted, but in fact he had sharp insight.