malefic
adjective
ma·lef·ic mə-ˈle-fik 
1
: having malignant influence : baleful
2
: malicious
Example Sentences
Recent Examples on the Web Expect a touch of the supernatural, malefic colleagues and plenty of eccentricity. 
Washington Post, 5 Sep. 2020
Washington Post, 5 Sep. 2020 Word History
Etymology
Latin maleficus wicked, mischievous, from male + -ficus -fic
First Known Use
1652, in the meaning defined at sense 1
- lettable
- lette
- letted
- letter
- letter board
- letter bomb
- letter book
- letter box
- letter carrier
- letter carriers
- letter case
- letter drawer
- letter founder
- letter hand
- letter lichen
- letter mail
- letter missive
- letter of advice
- letter of credence
- letter of credit
- letter of delegation
- letter of hypothecation
- letter of instruction
- letter of intent
- Letter of Jeremiah