pernicious 

  1. 形容詞
有害的, 有毒的
惡性的
壞的, 邪惡的
致命的
pernicious to ...(健康等):
對...有害的

    同義字詞
adverse,bad,baleful,baneful,damaging,dangerous,deleterious,detrimental,evil,harmful,hurtful,ill,injurious,mischievous,nocuous,noxious,prejudicial,wicked

例句

  1. It's most pernicious when breathed in.
  2. These measures are pernicious and partisan.
  3. The most pernicious suite of used furniture.
  4. The second problem is even more pernicious .
  5. He died some years since of pernicious anaemia.