Banefully
Part of speech: adverb
Definition: In a baneful way.
Perniciously
Part of speech: adverb
Definition: In a pernicious manner.
Banefully as an adverb is in a baneful way. while Perniciously as an adverb is in a pernicious manner.
Part of speech: adverb
Definition: In a baneful way.
Part of speech: adverb
Definition: In a pernicious manner.
We hope you now know whether to use Banefully or Perniciously in your sentence.