Perniciously

adv

adv ·Rare ·Advanced level

Definitions

Adverb
  1. 1
    In a pernicious manner.
Adverb
  1. 1
    in a noxiously baneful way wordnet
  2. 2
    in a harmfully insidious manner wordnet

Synonyms

All synonyms
banefullydisastrouslyinsidiouslyinsidiously

Etymology

From pernicious + -ly.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.