ad lib, baseness, deficiency, disability, disablement, disqualification, extemporaneousness, failure, falling short, faultiness, fewness, imbecility, imperfection, improvisation, inability, inadeptness, inadequacy, inadequateness, inaptitude, inaptness, inattentiveness, incapability, incapacitation, incapacity, incompetency, indexterity, ineffectiveness, ineffectuality, inefficiency, ineptitude, ineptness, infancy, inferiority, insufficiency, insufficientness, lack of preparation, legal incapacity, littleness, maladjustment, maladroitness, meanness, mediocrity, minority, none to spare, nonfulfillment, nonpreparation, nonpreparedness, nonsatisfaction, pedestrianism, pettiness, planlessness, rustiness, shabbiness, short supply, skill-lessness, smallness, subnormality, thoughtlessness, too late, too little, triviality, unaptness, uncleverness, undeftness, undexterousness, undextrousness, unfitness, unfittedness, unintelligence, unpreparedness, unproficiency, unqualification, unqualifiedness, unreadiness, unschooledness, unskillfulness, unsuitability, unsuitableness, unsuitedness, untrainedness, uselessness, vulgarity, vulnerability, wardship