This page provides all possible meanings and translations of the word remiss
derelict, delinquent, neglectful, remiss(adj)
failing in what duty requires
"derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills"
At fault; failing to fulfill responsibility, duty, or obligations.
I would certainly be remiss if I did not give credit where credit was due.
not energetic or exact in duty or business; not careful or prompt in fulfilling engagements; negligent; careless; tardy; behindhand; lagging; slack; hence, lacking earnestness or activity; languid; slow