Part of speech: Noun
the state of needing something that is absent or unavailable
Example: there is a serious lack of insight into the problem; water is the critical deficiency in desert regions; for want of a nail the shoe was lost
Part of speech: Noun
lack of an adequate quantity or number
Example: the inadequacy of unemployment benefits
Insufficiency, Want, Deficiency, Inadequacy, Lack
The word "deficiency" Many other languages have similar words:
deficit – A related word in the same word family.
-ency – A related word in the same word family.
Latin's grammatical structure influenced how English speakers think about verb tenses and cases.