Search Result for "inefficiency": 
Wordnet 3.0

NOUN (1)

1. unskillfulness resulting from a lack of efficiency; 



The Collaborative International Dictionary of English v.0.48:

Inefficiency \In`ef*fi"cien*cy\, n.
   The quality of being inefficient; lack of power or energy
   sufficient for the desired effect; inefficacy; incapacity;
   as, he was discharged from his position for inefficiency.
   [1913 Webster]


WordNet (r) 3.0 (2006):

inefficiency
    n 1: unskillfulness resulting from a lack of efficiency [ant:
         efficiency]