Dreaming of cursing someone is bad sign as per dream meaning and interpretation. The dream means you will face problems from both known and unknown people for no fault of yours. It also means you will be cheated by someone.
Dream of cursing someone and you know the person means you should avoid trusting other people with your work. It also means you should not have high expectations from other people.
Dreaming of cursing someone and you do not know the person means you will face problems mainly with strangers. You should be careful while traveling and driving after seeing the dream.
Dream of cursing someone and you do not see the person means you will be cheated by a person you had never seen. The dream means not to trust people on the phone etc.