1
[ adverb ] in a harmfully insidious manner

Synonyms

insidiously

Examples

"these drugs act insidiously"

Related terms

insidious baneful baneful insidious

2
[ adverb ] in a noxiously baneful way

Synonyms

banefully

Examples

"this banefully poisoned climate"

Related terms

baneful baneful baneful

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Similar Spelling

pernicious perniciousness pernickety

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