ineffectual

adjectives

not producing an intended effect

"an ineffective teacher"; "ineffective legislation"

is derived from

is derived from

producing no result or effect

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

futile, ineffectual, otiose, unavailing

is derived from

is derived from

lacking in power or forcefulness

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

ineffective, ineffectual, unable

is derived from

is derived from