Synonyms of mephitical

1 Syllable
bad
2 Syllables
fatal, septic, toxic, noxious, evil, lethal, corrupt, morbid, nocuous, vicious, poison, deadly, mortal, peccant, hurtful
3 Syllables
pernicious, baleful, viperous, mephitic, malicious, toxicant, venomous, dangerous, noisome, baneful, miasmatic, virulent, malignant
4 Syllables
pestiferous, pestilential, detrimental, deleterious, corruptive, toxiferous, destructive, infective