Mental deficiency
Mental deficiency noun - Mild mental retardation.
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Synonyms for Mental deficiency
Underdevelopment and mental deficiency are semantically related. In some cases you can use "Underdevelopment" instead a noun phrase "Mental deficiency".
Underdevelopment
Underdevelopment noun - State of inadequate development.
Mental deficiency and underdevelopment are semantically related. You can use "Mental deficiency" instead a noun "Underdevelopment".
Mutual synonyms
Cite this Source
Underdevelopment and Mental deficiency. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/mental_deficiency/underdevelopment
Mental deficiency & Underdevelopment. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/mental_deficiency/underdevelopment>.
Underdevelopment or Mental deficiency. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/mental_deficiency/underdevelopment.
Google Ngram Viewer shows how "mental deficiency" and "underdevelopment" have occurred on timeline