remiss
1. [ adjective ] failing in what duty requires
Synonyms: delinquent neglectful derelict
Examples:

"derelict (or delinquent) in his duty" "neglectful of his duties" "remiss of you not to pay your bills"

Related terms: negligent
Similar spelling:   reins
  reims
  Reams
  Reames
  Remigio
  Reinsch
  Reinoso
  Renzi
  Remus
  Renick
  Remick
  Reinke