- not sufficient; lacking in what is necessary or required: an insufficient answer.
- deficient in force, quality, or amount; inadequate: insufficient protection.
Origin of insufficient
SynonymsSee more synonyms on Thesaurus.com
Examples from the Web for insufficient
After 90 minutes of deliberation, the jury found that the evidence was insufficient and acquitted Lizzie.Would You Stay in Lizzie Borden’s Ax-Murder House?
October 30, 2014
Insufficient transparency in the UT admissions process is a serious concern that goes beyond politics.The University of Texas’s Machiavellian War on Its Regent
October 27, 2014
Insufficient protocols or incompetent practices for and by the nurses in the hospital hot zone.Disease History Vs. Disease Hysteria
October 19, 2014
There was also the question of inadequate protective gear and insufficient instruction.Ebola Nurses Are As Brave As Soldiers
October 17, 2014
Insufficient training, technology, and equipment to handle an Ebola epidemic, says Redlener, are byproducts of these cuts.Ebola Panic Is Worse Than the Disease
October 9, 2014
Gotre and other maladies arising from insufficient diet have disappeared.In the Heart of Vosges
But the shock was insufficient to repel the impetus of the charge.The Last of the Mohicans
James Fenimore Cooper
The information which Sakemba was able to give us was but little, and insufficient.Freeland
We were only fitted with summer clothing, which was now insufficient protection.The Long Labrador Trail
Brilliant as might have been his genius, his acquirements necessarily were insufficient.Vivian Grey
Earl of Beaconsfield, Benjamin Disraeli
- not sufficient; inadequate or deficient
Word Origin and History for insufficient
- Not sufficient.
- Incapable of proper functioning.