Deficiencies
Lack and deficiencies are semantically related. in imperfection topic. In some cases you can use "Lack" instead a noun "Deficiencies".
Lack
Lack noun - The fact or state of being absent.
Deficiencies and lack are semantically related. Sometimes you can replace term "Deficiencies" with "Lack", this nouns are similar.
Mutual synonyms
Both words in one sentence
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The Stupiders is a Funny Animal comic/webcomic that takes place in a world dominated by cute, (mostly) fury animals with severe mental deficiencies: the most common being a lack of commonsense.
Source: Webcomic / The Stupiders
Cite this Source
Lack and Deficiencies. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/deficiencies/lack
Deficiencies & Lack. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/deficiencies/lack>.
Lack or Deficiencies. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/deficiencies/lack.
Google Ngram Viewer shows how "deficiencies" and "lack" have occurred on timeline