Definition of pernicious:
lethal, pestilential, perverting, unhealthful, injurious, detrimental, poisonous, evil, elusive, insidious, mischievous, insalubrious, deleterious, unwholesome, noxious, pestilent, mortal, ruinous, bad, noisome, baleful, virulent, venomous, baneful, deadly, pestiferous, harmful, foul, help, subtle, destructive, hurtful, plaguey, malignant, deathly.
- "Dotty Dimple At Home", Sophie May.
- "The Pacha of Many Tales", Captain Frederick Marryat.
- "Paris As It Was and As It Is", Francis W. Blagdon.