Trifling or unimportant
Producing a strong impression or response; striking:
Not availing; futile; ineffectual
Unskilled, lacking normally expected degree of ability.
Being a period of time in which there is little or no activity:
Not adequate; not sufficient; not equal to what is required
The definition of insufficient is that there is not enough of something.
(Obsolete) Lacking self-restraint.
(Economics) Adding nothing to exchangeable value.
Not yielding the desired outcome; fruitless:
Resulting from, or indicating, lack of judgment, discernment, or firmness; unwise; hence, foolish.
Not efficacious; unable to produce the desired effect
Lacking in utility or serviceability; not useful.
Without worth or merit; useless, valueless, etc.
The definition of incapable is not having the ability, strength or legal qualification to do something.
Lacking strength or power; helpless and totally ineffectual.
Not having the desired effect
That has or have previously been owned by someone else.
Not capable of accomplishing anything
Having or showing ability or achievement in a specified field:
not producing an intended effect
Having no hope or chance of changing or improving:
Find another word for ineffectual. In this page you can discover 37 synonyms, antonyms, idiomatic expressions, and related words for ineffectual, like: ineffective, useless, futile, effective, unavailing, incompetent, idle, inadequate, insufficient, unable and impotent.