IPA: /ˈslʌvən/
KK: /ˈslʌvən/
A person who is often messy or careless about their appearance and cleanliness.
He is such a sloven that he rarely takes the time to clean his room.
Sloven comes from the Middle English 'sloven' (meaning a careless or untidy person), which is derived from the Old English 'slōfan' (meaning to be careless or negligent). The word originally described someone who is not careful about their appearance or habits.
Think of someone who is 'careless' or 'untidy' — that's what a sloven is, someone who doesn't pay attention to their appearance.