Sisyphean labor, default, delinquency, dereliction, disconformity, disregard, endless task, failure, falling short, inadequacy, inadequateness, inattention, incompetence, inexecution, inobservance, insufficiency, insufficientness, laxity, loose ends, neglect, negligence, nonaccomplishment, nonachievement, nonadherence, noncompliance, nonconformance, nonconformity, nonconsummation, nondischarging, none to spare, nonexecution, nonfeasance, nonobservance, nonperformance, nonsatisfaction, omission, oversight, rough edges, short supply, slight, too late, too little, unfulfillment, unobservance, unqualification, unsuitability, work of Penelope