ineffectiveness (n.)
- absurdity
- aimlessness
- emptiness
- failure
- fatuity
- fecklessness
- fruitlessness
- futility
- hollowness
- impotence
- inability
- inadequacy
- inanity
- inaptitude
- inaptness
- inattentiveness
- incapability
- incapacity
- incompetence
- incompetency
- ineffectuality
- ineffectualness
- inefficaciousness
- inefficacy
- inefficiency
- ineptness
- invalidity
- maladjustment
- maladroitness
- meaninglessness
- mediocrity
- pointlessness
- powerlessness
- purposelessness
- rustiness
- thoughtlessness
- triviality
- unfitness
- unpersuasiveness
- unproductiveness
- unprofitability
- unprofitableness
- unskillfulness
- uselessness
- valuelessness
- vanity
- weakness
- worthlessness