aptitude

tactlessness, ungratefulness, insensitiveness, unproductiveness, inactiveness, thoughtlessness, ineffectuality, unpunctuality, inconstancy, ineptitude, incompetence, indifference, inconsideration, feebleness, cocksureness, selfishness, indecisiveness, intransigency, slothfulness, heedlessness, untrustworthiness, ambiguousness, unscrupulousness, laziness, corruptness, belittlement, inconsistence, apathy, pusillanimity, distractedness, egocentrism, credulousness, prevarication, acrimonies, dilettantism, wilfulness, cowardliness, spitefulness, jadedness, constructiveness, slovenliness, joylessness, boneheadedness, superciliousness, cravenness, inarticulateness, diffidence, ignorance, squandermania, complicities, bullheadedness, obstinacy, timidity, embitterment, inefficiency, inadequacy, mystification, cliquishness, churlishness, arrogance, pompousness, stubbornness, obduracy, bureaucratism, poorness, gutlessness, immoderation, hastiness, egotism, spinelessness, disorderliness, ascription, staunchness, irresolution, indolence, incapability, blitheness, clannishness, dehumanisation, cowardice, overzealousness, dumbness, animality, impoliteness, fatuousness, vicissitude, infelicities, shoddiness, insincerity, disorganization, stupidity, lassitude, deracination, indirectness, helplessness, inutility, hurriedness, ineptness, ineffectiveness, sectionalism, unreadiness, inefficacy, incapacity, unfitness, inability, inferiority, disinclination, imbecility, perversity, unsoundness, unwillingness, worthlessness, idiosyncrasy, imperfection, impotency, inconsistency, inertness, passivity, unworthiness, arbitrariness, clumsiness

incapableness, talentlessness