Meaning & use

ineffective

adjective·Academic

Last updated

UK/ˌɪnɪˈfektɪv/
US/ˌɪnɪˈfektɪv/

Meanings

  1. adjectivecomparable

    Not producing the result that was wanted.

    Grammar: Often followed by against or in: ineffective against pests.

    Patterns

    • ineffective against something
    • ineffective in doing something

    The spray proved ineffective against the mosquitoes.

    Her warnings were ineffective.

    An ineffective plan wasted the budget.

  2. adjectivecomparable

    Not good at doing a job or leading others.

    Grammar: Describes people or organizations: an ineffective manager.

    Patterns

    • an ineffective leader

    The ineffective manager could not keep the team organized.

    Critics called the committee ineffective.

    He felt ineffective in his new role.

Word forms

comparativemore ineffective
superlativemost ineffective

Common combinations

largely ineffective
The rule was largely ineffective.
prove ineffective
The new law proved ineffective.
ineffective treatment
Doctors stopped the ineffective treatment.
ineffective leadership
Ineffective leadership hurt the company.
render ineffective
Rust rendered the lock ineffective.

Synonyms and how they differ

useless
Useless is stronger and blunter, suggesting no value at all.
futile
Futile describes efforts that are pointless, not just weak.
inadequate
Inadequate means not good enough for a need, rather than failing to work.
inefficient
Inefficient is about wasted effort, even if the goal is reached.

Opposites

Word family

effect noun
a result
effective adjective
producing the wanted result
ineffectively adverb
in a way that does not work
ineffectiveness noun
failure to work

Commonly confused: ineffective or inefficient? ineffective or ineffectual?

ineffective vs inefficient

Inefficient means wasting time or resources; ineffective means failing to produce the result.

ineffective vs ineffectual

Ineffectual is similar but often describes weak people.

Practice

The medicine was ______ because it did not reduce the fever at all.

Make it your own

Write a sentence using “ineffective”, then check it and compare it with the examples above.

Your sentence stays on this page and is not sent anywhere.

Explore more words