Definitions of wrongful delay
(of an insurance company) an unreasonable delay in paying an insurance claim
Insurance disputes typically involve the wrongful delay or denial of coverage.
an unreasonable delay in allowing something to which a person has a right or an interest etc
Such damage, occasioned by the wrongful delay on the part of the administration, gives rise to a right to the payment of compensation.
an unreasonable delay in performing a contract or a duty
The court ruled that this constituted a wrongful delay in the delivery of the goods.