effectiveness, effectivity, effectuality, effectualness

inconsistency, ineptitude, inexperience, ineptness, inadequacy, immaturity, inefficiency, inefficacy, incompetence, inability, unwillingness, lack, fecklessness, shortcomings, absence, indecisiveness, ineffectualness, incompetency, feebleness, inactivity, inaptitude, unreadiness, inaction, disinterest, indifference, uselessness, unreliability, sloppiness, slowness, incapability, impracticability, failure, inflexibility, deceptiveness, timidity, effectiveness, tentativeness, impatience, aggressiveness, toothlessness, spinelessness, mismanagement, underachievement, incoherence, passiveness, unsuitability, ignorance, disorganization, untrustworthiness, stubbornness, unfamiliarity, inconsistence, tardiness, failings, deficiencies, futility, reluctance, intransigency, insensitiveness, disingenuousness, impotence, paucity, fruitlessness, shakiness, frustration, impracticality, shortsightedness, unaccountability, weakness, inutility, inattention, cravenness, laxity, stinginess, obduracy, intolerability, indecision, insufficiency, intransigence, incapacity, lethargy, stupidity, demoralization, irrelevance, weaknesses, lousiness, naivety, apathy, carelessness, fallibility, proneness, putridity, unhappiness, tactlessness, disinclination, vacillation, laziness, infeasibility, boneheadedness, illegitimacy, abandonment, unpopularity, unimportance, impossibility, powerlessness, unavailability, unfairness, worthlessness

inefficaciousness

impotency

ineffectuality