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Synonyms

ineffectual

American  
[in-i-fek-choo-uhl] / ˌɪn ɪˈfɛk tʃu əl /

adjective

  1. not effectual; without satisfactory or decisive effect.

    an ineffectual remedy.

  2. unavailing; futile.

    His efforts to sell the house were ineffectual.

    Synonyms:
    abortive, pointless, fruitless, ineffective
  3. powerless; impotent.

    Synonyms:
    weak, feeble

ineffectual British  
/ ˌɪnɪˈfɛktʃʊəl /

adjective

  1. having no effect or an inadequate effect

  2. lacking in power or forcefulness; impotent

    an ineffectual ruler

"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

Related Words

See useless.

Other Word Forms

  • ineffectuality noun
  • ineffectually adverb
  • ineffectualness noun

Etymology

Origin of ineffectual

A late Middle English word dating back to 1375–1425; see origin at in- 3, effectual

Explanation

If you are a coach with a losing team that doesn't listen to you, don't be surprised if you are called ineffectual. It means too weak to produce the desired effect. Ineffectual is similar to ineffective, but while ineffective implies that something simply doesn't work, ineffectual carries with it the idea of weakness too. An old computer might be ineffective for creating state-of-the-art digital presentations; a boss who looks the other way while her employees slack off all day, on the other hand, is ineffectual.

Keep Reading on Vocabulary.com

Vocabulary lists containing ineffectual

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At such moments, Marvin, a notably unemotive and cryptic actor, is less impressive than ineffectual.

From The Wall Street Journal • Apr. 15, 2026

In this tit for tat, though, California’s threats to respond have thus far proved ineffectual.

From Slate • Aug. 19, 2025

They have been ineffectual in the establishment of any semblance of an organisation able to take over inside the country if the opportunity arises.

From BBC • Jun. 25, 2025

So, for some businesses, the notion of a computer receptionist seems a welcome solution to the problem of ineffectual call centers.

From Los Angeles Times • May 19, 2025

Whenever Mrs. Tallis exercised authority in the absence of her husband, the children felt obliged to protect her from seeming ineffectual.

From "Atonement" by Ian McEwan