perniciously   (TTS Sound)

The perniciously has 2 Senses.

• perniciously, insidiously
• じわじわと
• in a harmfully insidious manner; "these drugs act insidiously"
• 害を及ぼすような陰険な

• perniciously, banefully
• in a noxiously baneful way; "this banefully poisoned climate"
• 不快に有害な方法で