venefical
/ˌvɛnɪˈfɪkəl/Definitions
1. adjective
Having or showing a tendency to cause harm or evil by deceitful or treacherous means.
“The politician’s venefical actions sparked outrage among the public.”
2. noun
A person who causes harm or evil by deceitful or treacherous means.
“The detective searched for clues to identify the venefical individual behind the crime.”