Remiss/rɪˈmɪs/ Definition 1 of 1Pro Tip 1/3Responsibility Focus Use 'remiss' to show someone neglected a duty or task they were expected to do. I would be remiss if I failed to deliver the project on time. Pro Tip 2/3Subtle Apology 'Remiss' can imply a mild apology for an oversight or neglect without using 'sorry'. I've been remiss in keeping in touch with my old friends. Pro Tip 3/3Mild Criticism It's often used to softly criticize one's self or others for inattention. The team was remiss in missing the deadline.