
Deficiency
Common Pairings
Often used with 'vitamin' and 'mineral', to describe health-related lacks.

She's been diagnosed with a mineral deficiency.
Quantifiable Lack
It implies you can measure what is missing.

A deficiency of three units was noted in stock.
Negative Consequence
Use 'deficiency' when the lack of something leads to negative outcomes.

A deficiency in attendance could lead to course failure.
Compare with
AdequacyDeficitImperfectionLackNeglectScarcityShortageSufficiency
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