incompetence ineptness inexpertness dilettantism amateurism clumsiness unskillfulness shoddiness sloppiness unprofessionalism ineptitude incapacity inability incapability ineffectiveness incompetency inadequacy uselessness inefficiency hopelessness impotence powerlessness unfitness ineffectuality insufficiency inexperience ineffectualness cluelessness inefficacy inaptness inferiority unsatisfactoriness unsuitableness freshness unknowingness rawness unfamiliarity greenness negligence carelessness slackness laxity inaccuracy laziness deficiency stupidity incapacitation inaptitude weakness lack helplessness inutility failure frailty disqualification awkwardness feebleness shortcoming maladroitness futility fruitlessness pointlessness infirmity disability necessity limitation unsuitability unreadiness paralysis enervation ineligibility disorganization debility indisposition impairment wastefulness indecisiveness disorganisation unsuccessfulness insignificance meaninglessness hollowness vanity frivolousness idleness worthlessness emptiness senselessness unprofitableness innocence simplicity naivety guilelessness ingenuousness naivete artlessness unworldliness simpleness naturalness viridity