Insufficiency (noun)

The quality or condition of being inadequate or insufficient.

Origin:

Late middle english (in the sense "deficiency, want"): from old french insuffisance, from latin insufficientia, from insufficient- "not sufficient", from the verb insufficientare (see insufficient).

Examples:

1. The doctor told me my health condition was caused by an insufficiency of certain nutrients.
2. The insufficiency of funds is a major issue for the charity organization.
3. There is an insufficiency of evidence to support the defendant's claim.
4. The company suffered from an insufficiency of workers.
5. The insufficiency of the materials made it impossible for the project to be completed.