The key that is used does not rust. (Albanian proverb). At the narrow passage there is no brother and no friend. (Arabic proverb).
Definition of remiss. 1  1 : negligent in the performance of work or duty : careless. 2  2 : showing neglect or inattention : lax.
negligent, neglectful, lax, slack, remiss mean culpably careless or indicative of such carelessness. negligent implies inattention to one's duty or business. negligent about writing a note of thanks; neglectful adds a more disapproving implication of laziness or deliberate inattention.