Wiktionary
curseful
a. (context archaic English) horrendous, horrific
Usage examples of "curseful".
Chambers’s early stories and an admirable example of the supernatural, has various thrills, with its river of blood, its death’s head moth, and the ancient but very active skull of the Black Priest who was shot as a traitor to his country, but lived on as an energetic and curseful ghost.
They accuse themselves of ingratitude and malignity when any one denies a lawful satisfaction to another of indolence, of sad ness, of anger, of scurrility, of slander, and of lying, which curseful thing they thoroughly hate.