Part of speech:
The definition of feeble is someone who is weak or a half-hearted attempt or something that is faint or unconvincing.
Having no useful result; ineffectual:
Not capable of producing a desired effect or result; ineffective.
Lacking the necessary ability; unskilled; incompetent
The definition of ineffectual is not productive or not working correctly.
Lacking in vigour or expression.
Lacking physical strength or vigor; weak.
(Economics) Adding nothing to exchangeable value.
Yielding no worthwhile result; fruitless; unprofitable
(Archaic) Lacking in sense; foolish
Without worth or merit; useless, valueless, etc.
Of evidence, that it is not admissible.
Failing to accomplish an intended objective; fruitless:
Given to doing nothing; lazy.
(Rare) Without fruit.
The definition of inadequate is someone or something that is lacking in something desired or required.
Showing a lack of judgment, sense, or reason; inappropriate or foolish:
(Rare) Idle; indolent
Not availing; futile; ineffectual
Void means empty or useless or having no legal force.
To make invalid; deprive of legal force
To cancel out
To vitiate is to corrupt, invalidate or weaken morally.
Producing a strong impression or response; striking:
Not having the desired effect
not producing an intended effect
The definition of unable is a person or thing that doesn't have the ability, power or authority to do something.
Find another word for ineffective. In this page you can discover 49 synonyms, antonyms, idiomatic expressions, and related words for ineffective, like: flaccid, incapable, feeble, futile, inefficacious, inefficient, powerless, feckless, ineffectual, bungling and weak.