a failure to act when under an obligation to do so; a refusal (without sufficient excuse) to do that which it is your legal duty to do
nonfeasance详细解释
non.fea.sance n.Law （名词）【法律】 Failure to perform an act that is either an official duty or a legal requirement.未履行：未履行公务或法律要求的行动 来源：non-non-(mis)feasance(mis)feasance
