perniciously

Adverb

Meaning

in a noxiously baneful way

in a harmfully insidious manner

Source: WordNet

Synonyms

banefully insidiously badly adversely fatally destructively evilly malevolently injuriously malignantly malignly balefully harmfully dangerously maliciously
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Antonyms

fortunately luckily fully mildly constructively pleasantly
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Related terms

pernicious perniciousness

Examples

this banefully poisoned climate Source: Internet

these drugs act insidiously Source: Internet

Close letter words and terms

pernicious anaemia pernicious anemia pernicious scale perniciousness pernicity pernicketily