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inefficient

in·ef·fi·cient

inefficient

pronunciation:
In fI shnt
features:
Word Parts
part of speech: adjective
definition 1: using excessive time or means to produce or achieve results; wasteful; uneconomical.
antonyms:
economical, efficient, expeditious
definition 2: not producing or incapable of producing an intended effect; ineffective.
antonyms:
efficient
similar words:
feeble, ineffective
derivation: inefficiently (adv.)
Word Parts
The word inefficient contains the following part:
in-2 Latin prefix that means not, without
Show wordsHide wordsMore about this word part:
The prefix in-2 occurs in Latin loanwords and attaches to Latinate bases. The bases of most words prefixed with in-2 are independent adjectives (inadvertent , incognizant ), although the base adjective may no longer be in widespread use (as with incessant ). Exceptions include iniquitous and indignant . -in2 has multiple forms, as the 'n' sound in in-2 assimilates to the initial sound of the base to which it is attached. See the assimilated forms ig-, il-2, im-2, and ir-2.