Synonyms of the word

neglectful

• adj. Tending to neglect; failing to take care of matters which require attention.

delinquent

• adj. Late or failing to pay a debt or other financial obligation, like a mortgage or loan.
• adj. Failing in or neglectful of a duty or obligation; guilty of a misdeed or offense.
• n. One who disobeys or breaks rules or laws.
• n. (obsolete) a term applied to royalists by their opponents in the English Civil War 1642 - 1645. Charles…

derelict

• adj. Abandoned, forsaken; given up by the natural owner or guardian; (of a ship) abandoned at sea, dilapidated,…
• adj. Negligent in performing a duty.
• adj. Lost; adrift; hence, wanting; careless; neglectful; unfaithful.
• n. Property abandoned by its former owner, especially a ship abandoned at sea.
• n. (dated) An abandoned or forsaken person; an outcast.
• n. A homeless and/or jobless person; a person who is (perceived as) negligent in their personal affairs and…

inattentive

• adj. Of or pertaining to lack of attention; not paying attention; careless.

negligent

• adj. Careless, without appropriate or sufficient attention.
• adj. (law) Culpable due to negligence.

remiss

• adj. At fault; failing to fulfill responsibility, duty, or obligations.
• adj. Not energetic or exact in duty or business; careless; tardy; slack; hence, lacking earnestness or activity;…