noun, plural in·suf·fi·cien·cies for 2.
Origin of insufficiency
Related formsself-in·suf·fi·cien·cy, noun, plural self·-in·suf·fi·cien·cies.
Examples from the Web for insufficiency
But a serious drawback is the insufficiency and uncertainty of the rain supply.Up To Date Business|Various
In the former an insufficiency of air causes excess of carbon in the kiln and the absorption of oxygen from the glaze.Pottery, for Artists Craftsmen & Teachers|George J. Cox
But he was forced to admit to himself the insufficiency of that reason; it was too palpably false.The Three Black Pennys|Joseph Hergesheimer
And then the vanity of it, the cruelty and insufficiency of it!The Manxman|Hall Caine
The class is asked to give instances tending to prove the insufficiency of the proposed formula.The Moral Instruction of Children|Felix Adler