1
dire(warning, threatening, injurious, damaging, destructive)
1
disastrous(threatening, injurious, damaging, destructive, menacing)
1
disserviceable
1
distressing
1
evil-minded
1
fell
1
flagitious
1
full of mischief(expression, idiom, inexpedience)
1
ghastly
1
harsh
1
heinous
1
horrible
1
horrid
1
ill-starred
1
immoral
1
invidious
1
lethal
1
lurid
1
menacing(warning, threatening, injurious, damaging, destructive)
1
ornery
11 years ago|4.6k views|share |citing 
APASmart Define. (2015). malefic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/malefic/thesaurus/synonyms
ChicagoSmart Define. 2015. "malefic thesaurus" https://smartdefine.org/malefic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, malefic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/malefic/thesaurus/synonyms>.
MLASmart Define. "malefic thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/malefic/thesaurus/synonyms>