ineffective


in·ef·fec·tive

adjective \ˌi-nə-ˈfek-tiv\

: not producing or having the effect you want : not effective

Full Definition of INEFFECTIVE

1
:  not producing an intended effect :  ineffectual <ineffective lighting>
2
:  not capable of performing efficiently or as expected :  incapable <an ineffective executive>
in·ef·fec·tive·ly adverb
in·ef·fec·tive·ness noun

Examples of INEFFECTIVE

  1. The treatment was ineffective against the disease.
  2. <an ineffective effort to reduce unemployment that only spurred inflation>

First Known Use of INEFFECTIVE

1649

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