DictionaryinsufficiencyNot enough to meet a need
noun

insufficiency

in-suh-FISH-un-see/ˌɪnsəˈfɪʃənsi/

A lack of the amount, ability, or function needed.

The cord's insufficiency in length prevents it from reaching the socket.

A lamp's power cord is stretched toward a wall socket but ends visibly short of it, making the insufficient length immediately apparent.
Etymology

The Latin noun names the condition of being insufficient. The related adjective described people as unable or inadequate, and things as lacking what was required—both reflected in today's sense of a shortfall.

In context

University of Virginia School of Law27:28
And the court says, at least in so far as the insufficiency of the evidence claim goes, the conviction is solid. There was sufficient evidence
"How to Read a Case" with UVA Law Professor Anne Coughlin

More examples

  • The judge dismisses the case because of the insufficiency of evidence.
  • Renal insufficiency reduces the kidneys' ability to filter waste.
  • The storm exposes the insufficiency of the town's drainage system.

Forms

insufficiency · insufficiencies

insufficient adjective — Not enough to meet a need.

Similar words

shortage
Shortage usually means too little of a needed resource.
deficiency
Deficiency often identifies a specific missing nutrient, quality, or component.
inadequacy
Inadequacy emphasizes failure to meet a required standard.