[ in-suh-fish-uh n-see ]
/ ˌɪn səˈfɪʃ ən si /

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 in·suf·fi·cience.

Origin of insufficiency

First recorded in 1375–1425; late Middle English word from Late Latin word insufficientia. See insufficient, -ency
Related formsself-in·suf·fi·cien·cy, noun, plural self·-in·suf·fi·cien·cies. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for insufficiency

British Dictionary definitions for insufficiency


/ (ˌɪnsəˈfɪʃənsɪ) /


Also called: insufficience the state of being insufficient
pathol failure in the functioning of an organ, tissue, etccardiac insufficiency
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for insufficiency



1520s, from Late Latin insufficientia, noun of quality from insufficientem (see insufficient). Insufficience "deficiency" is from early 15c.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for insufficiency


[ ĭn′sə-fĭshən-sē ]


An inability of a bodily part or an organ to function normally.
A moral or mental incompetence.
An inadequate supply.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.