Remiss – Careless and not doing a duty well
He really missed (remiss) removing all of the rejects from the line. He was careless.
Examples of remiss in a sentence
I've been remiss in not mentioning it.
It would be remiss of me not to recognise the contributions of our benefactors and the support of our social partners.
I would be remiss if I did not discuss the many action sequences and special effects.