Mental deficiency and Obtuseness

Mental deficiency

Mental deficiency noun - Mild mental retardation.

Obtuseness and mental deficiency are semantically related. In some cases you can use "Obtuseness" instead a noun phrase "Mental deficiency".

Obtuseness

Obtuseness noun - The quality or state of lacking intelligence or quickness of mind.
Usage example: our guest's obtuseness was such that he failed to take even the broadest hint that it was time to leave

Mental deficiency and obtuseness are semantically related. Sometimes you can use "Mental deficiency" instead a noun "Obtuseness".
Cite this Source
Obtuseness and Mental deficiency. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/mental_deficiency/obtuseness
Mental deficiency & Obtuseness. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/mental_deficiency/obtuseness>.
Obtuseness or Mental deficiency. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/mental_deficiency/obtuseness.
Google Ngram Viewer shows how "mental deficiency" and "obtuseness" have occurred on timeline