catflap.org Online Dictionary Query

  the party in default /ðə pˈɑːti ɪn dɪfˈɒlt/
  die in Verzug befindliche Partei, die Partei in Verzug
     Synonym: the defaulting party
  
   see: contractual default, default in performance, contractual delay, delay in performance, default on the part of the creditor/obligee, creditor's default, delay of the creditor, default on the part of the debtor/obligor, default of the debtor, debtor's delay, in case of default, in case of delay, in the event that a default occurs, a defaulted mortgage, cross default, be in default, default, fail to perform the contract / your contractual obligations