Meaning & use
insufficiency
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Meanings
noununcountable
A lack of something that is needed, or the state of not being enough.
Grammar: Uncountable when referring to a general lack; can be countable when referring to a specific instance or type: an insufficiency of data.
Patterns
- insufficiency of something
- an insufficiency in something
The insufficiency of evidence led to the case being dismissed.
There is an insufficiency of funds to complete the project.
The report highlighted insufficiencies in the safety procedures.
nouncountable or uncountablemedical
A medical condition in which an organ or system does not work as well as it should, but has not failed completely.
Grammar: Often used in medical terms like 'renal insufficiency' or 'adrenal insufficiency'.
Patterns
- renal insufficiency
- adrenal insufficiency
- insufficiency of the something
The patient was diagnosed with mild renal insufficiency.
Adrenal insufficiency can cause fatigue and low blood pressure.
She was treated for pancreatic insufficiency, which affected her digestion.
Word forms
| plural | insufficiencies |
|---|
Common combinations
- insufficiency of evidence
- The judge ruled that there was an insufficiency of evidence to proceed.
- renal insufficiency
- Renal insufficiency means the kidneys are not filtering blood properly.
- adrenal insufficiency
- Adrenal insufficiency requires hormone replacement therapy.
- insufficiency of resources
- The insufficiency of resources made it hard to finish the research.
Synonyms and how they differ
- lack
- More general and common; 'lack' can be used in most contexts, while 'insufficiency' often implies a shortfall relative to a standard or need.
- shortage
- Often used for tangible things like food or money; 'insufficiency' can also refer to abstract qualities or medical conditions.
- deficiency
- Similar but often used for specific nutrients or qualities (e.g., vitamin deficiency); 'insufficiency' is broader and common in medicine for organ function.
Opposites
Word family
- insufficient adjective
- Not enough; lacking in quantity or quality.
- insufficiently adverb
- In a way that is not enough.
Commonly confused: insufficiency or inefficiency?
insufficiency vs inefficiency
Means not working well or wasting resources, while 'insufficiency' means not having enough of something.
Practice
The doctor said the patient had ___ of the kidneys, meaning they were not working well but had not failed completely.
Choose one answer.
'Insufficiency' is the medical term for an organ that is not functioning adequately. 'Inefficiency' means wastefulness; 'insulation' means protection or material that prevents heat loss; 'insistence' means demanding something — none fit the medical context.
Make it your own
Write a sentence using “insufficiency”, then check it and compare it with the examples above.