noun, plural in·suf·fi·cien·cies for 2.
- deficiency in amount, force, power, competence, or fitness; inadequacy: insufficiency of supplies.
- an instance of this.
- inability of an organ or other part of the body to function normally: cardiac insufficiency.
- Also called: insufficience the state of being insufficient
- pathol failure in the functioning of an organ, tissue, etccardiac insufficiency
1520s, from Late Latin insufficientia, noun of quality from insufficientem (see ). Insufficience “deficiency” is from early 15c.
- An inability of a bodily part or an organ to function normally.
- A moral or mental incompetence.
- An inadequate supply.