Something that has some sort of divine harm, malady, or other curse.
(obsolete) Shrewish, ill-tempered (often applied to women).
1599, William Shakespeare, Much Ado About Nothing, :LEONATO. By my troth, niece, thou wilt never get thee a husband, if thou be so shrewd of thy tongue.ANTONIO. In faith, she's too curst.BEATRICE. Too curst is more than curst: I shall lessen God's sending that way; for it is said, 'God sends a curst cow short horns;' but to a cow too curst he sends none.