- 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
1. inadequate, scanty, deficient.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for insufficiently
He has since been considered increasingly politically vulnerable after Cruz attacked him as insufficiently conservative.Texas's Disco Candidate For Lieutenant Governor
May 27, 2014
In response, Smith quit the party in a huff that July, trashing it as insufficiently principled on his way out the door.Sen. Bob Smith: The Thing That Wouldn’t Leave
December 4, 2013
In the Tea Party era, the GOP has become too revolutionary and insufficiently conservative.Obamacare Ruling: Peter Beinart on the Favor Justice Roberts Did the Right
June 28, 2012
Each of the above candidates was preemptively attacked as insufficiently conservative by some corner of the movement.GOP Would Have Had Better Shot in 2012 With Center-Right Pols Like Christie
December 2, 2011
The police forces are understaffed, insufficiently trained, and ill-equipped.India’s Tryst with Terror
September 9, 2011
"A friend of ours did think that it is insufficiently reinsured," said Margaret.Howards End
E. M. Forster
Another returned it insufficiently stamped, and there was fourpence to pay.A Great Man
She had been insufficiently clad in winter, too heavily clad in summer.Mary Gray
Indeed the whole character of Jane is insufficiently presented.A History of the French Novel, Vol. 2
Of the 'Apollo' it is argued that it is insufficiently modelled.Ave Roma Immortalis, Vol. 2
Francis Marion Crawford
- not sufficient; inadequate or deficient
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 insufficiently
Online Etymology Dictionary, © 2010 Douglas Harper
- Not sufficient.
- Incapable of proper functioning.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.