Oligophrenia
Retardation and oligophrenia are semantically related. In some cases you can use "Retardation" instead a noun "Oligophrenia".
Retardation
Retardation noun - A usually gradual decrease in the pace or level of activity of something.
Oligophrenia and retardation are semantically related. You can use "Oligophrenia" instead a noun "Retardation".
Mutual synonyms
Cite this Source
Retardation and Oligophrenia. (2017). Retrieved 2026, August 03, from https://thesaurus.plus/related/oligophrenia/retardation
Oligophrenia & Retardation. N.p., 2017. Web. 03 Aug. 2026. <https://thesaurus.plus/related/oligophrenia/retardation>.
Retardation or Oligophrenia. 2017. Accessed August 03, 2026. https://thesaurus.plus/related/oligophrenia/retardation.
Google Ngram Viewer shows how "oligophrenia" and "retardation" have occurred on timeline