ineffectual
1. [ adjective ] not sufficient to produce a desired result
Examples:

"an ineffectual effort to block the legislation"

Related terms: effectual ineffective
2. [ adjective ] lacking in power or forcefulness
Synonyms: unable ineffective
Examples:

"an ineffectual ruler" "like an unable phoenix in hot ashes"

Related terms: impotent
3. [ adjective ] producing no result or effect
Synonyms: futile unavailing otiose
Examples:

"a futile effort" "the therapy was ineffectual" "an otiose undertaking" "an unavailing attempt"

Related terms: useless
4. [ adjective ] not producing an intended effect
Synonyms: uneffective ineffective
Examples:

"an ineffective teacher" "ineffective legislation"

Related terms: effective unproductive toothless useless idle powerless inefficient inefficacious effectiveness
Similar spelling:   ineffectually
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