ineffective

[ in-i-fek-tiv ]
/ ˌɪn ɪˈfɛk tɪv /

adjective

not effective; not producing results; ineffectual: ineffective efforts; ineffective remedies.
inefficient or incompetent; incapable: an ineffective manager.
lacking in artistic effect, as a literary work, theatrical production, or painting.

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Origin of ineffective

First recorded in 1645–55; in-3 + effective

OTHER WORDS FROM ineffective

in·ef·fec·tive·ly, adverbin·ef·fec·tive·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for in-effective

ineffective
/ (ˌɪnɪˈfɛktɪv) /

adjective

having no effect
incompetent or inefficient

Derived forms of ineffective

ineffectively, adverbineffectiveness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012