- baleful
- damaging
- destructive
- injurious
- mischievous person
- pestilential
- plaguey
Synonyms for pestifer
- exitiabilis – destructive, fatal deadly, lethal
- exitialis – destructive, fatal deadly, lethal
- exitosus – destructive, fatal deadly, lethal
- luctisonus – baleful, mournful, sad
- nocens – bad, culpable, evil, injurious, wicked
- perniciosus – destructive, pernicious