What is the meaning of perniciously?

adverb

  • In a harmfully insidious manner.
    • usage: "these drugs act insidiously"
  • In a noxiously baneful way.
    • usage: "this banefully poisoned climate"
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APAWordNet. (2010). perniciously. Retrieved September 20, 2026, from http://smartdefine.org/perniciously/definitions/1326057
ChicagoWordNet. 2010. "perniciously" http://smartdefine.org/perniciously/definitions/1326057 (accessed September 20, 2026).
HarvardWordNet 2010, perniciously, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/perniciously/definitions/1326057>.
MLAWordNet. "perniciously" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/perniciously/definitions/1326057>