Main Entry: in·ef·fi·cient

Pronunciation: \-ˈfi-shənt\

Function: adjective

Date: 1750

: not efficient: as a : not producing the effect intended or desired b : wasteful of time or energy <inefficient operating procedures> c : incapable, incompetent <an inefficient worker>

— inefficient noun

— in·ef·fi·cient·ly adverb