Dictionary.com
Thesaurus.com
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

Synonym Usage

See useless.

Other Word Forms

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.

Because in addition to being ineffectual and incoherent, he was also uncharismatic with it.

From Slate • Jun. 23, 2026

Salah had made a slow start to the tournament, with an ineffectual display in their opening draw with Belgium followed up by a quiet opening half against the Kiwis.

From BBC • Jun. 22, 2026

The cops of wherever this is are ineffectual.

From Los Angeles Times • Jun. 11, 2026

“Sinners” centers the Black American experience through history, art and spirituality, while “One Battle” speaks to the white liberal male’s ineffectual navigation of weaponized racial grievance.

From Salon • Mar. 13, 2026

General Halleck had shuffled the generals at Pittsburg Landing after the battle there, assigning Grant to an ineffectual position as assistant commander and taking command of the field himself.

From "Across Five Aprils" by Irene Hunt

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "ineffectual" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com