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[in-i-fish-uh n-see]
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noun, plural in·ef·fi·cien·cies for 2.
  1. the quality or condition of being inefficient; lack of efficiency.
  2. an instance of inefficiency: This work is riddled with inefficiencies.
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Origin of inefficiency

First recorded in 1740–50; ineffici(ent) + -ency
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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