Pocket Thesaurus
Synonyms of pernicious
devastating, noxious, deadly, poisonous, virulent, malicious, harmful, toxic, nefarious, detrimental, dangerous, lethal, ruinous, destructive, damaging, baleful, deleterious, evil, fatal, iniquitous, injurious, killing, malevolent, malign, malignant, mortal, noisome, offensive, pestiferous, pestilent, prejudicial, sinister, venomous, wicked, pestilential, miasmatic, miasmic
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