inefficient

[ in-i-fish-uh nt ]
/ ˌɪn ɪˈfɪʃ ənt /

adjective

not efficient; unable to effect or achieve the desired result with reasonable economy of means.
lacking in ability, incompetent.

Origin of inefficient

First recorded in 1740–50; in-3 + efficient

OTHER WORDS FROM inefficient

in·ef·fi·cient·ly, adverb

Example sentences from the Web for inefficient

British Dictionary definitions for inefficient

inefficient
/ (ˌɪnɪˈfɪʃənt) /

adjective

unable to perform a task or function to the best advantage; wasteful or incompetent
unable to produce the desired result

Derived forms of inefficient

inefficiency, noun inefficiently, adverb