malevolent
     adj 1: wishing or appearing to wish evil to others; arising from
            intense ill will or hatred; "a gossipy malevolent old
            woman"; "failure made him malevolent toward those who
            were successful" [syn: {malicious}] [ant: {benevolent}]
     2: extremely malevolent or malicious; "the malignant tongues of
        gossipers" [syn: {malignant}]
     3: having or exerting a malignant influence; "malevolent
        stars"; "a malefic force" [syn: {malefic}, {malign}, {evil}]
Source: WordNet® 2.0