Definition of inefficient adjective from the Oxford Advanced American Dictionary

 

inefficient

 adjective
adjective
NAmE//ˌɪnɪˈfɪʃnt//
 
 
jump to other results
not doing a job well and not making the best use of time, money, energy, etc. an inefficient heating system inefficient management an extremely inefficient secretary inefficient use of time and energy opposite efficient
inefficiency
 
jump to other results
NAmE//ˌɪnɪˈfɪʃənsi//
 
noun [uncountable, countable] (pl. inefficiencies) waste and inefficiency in government inefficiencies in the system
inefficiently
 
jump to other results
 
adverb
See the Oxford Advanced Learner's Dictionary entry: inefficient