• IPA: /ɹəˈmɪs/

remiss (not comparable)

1. At fault; failing to fulfill responsibility, duty, or obligations.

   I would certainly be remiss if I did not give credit where credit was due.

2. Not energetic or exact in duty or business; careless; tardy; slack; hence, lacking earnestness or activity; languid; slow.
   • 1671, John Milton, “Samson Agonistes, […]”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: Printed by J. M[acock] for John Starkey […], OCLC 228732398 ↗, line 240, [https://archive.org/stream/paradiseregaindp00milt_0#page/{}/mode/1up page 21]:

     Thou never waſt remiſs, I bear thee witneſs:

   • Its motion becomes more languid and remiss.

• (at fault) at fault, blameworthy, lash, lax, negligent, reprehensible
• (not energetic) careless, tardy, slack, languid, slow; see also Thesaurus:apathetic or Thesaurus:slow

• Spanish: remiso

• German: nachlässig
• Russian: небре́жный
• Spanish: flojo, descuidado