Standard Lemma guide

perniciously

adv · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

adv

Meaning 1

In a pernicious manner.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

in a noxiously baneful way

Definition source: Princeton WordNet 3.0

Examples

  • this banefully poisoned climate

Meaning relationships

Synonyms: banefully

Antonyms: none provided

3

adverb

Meaning 3

in a harmfully insidious manner

Definition source: Princeton WordNet 3.0

Examples

  • these drugs act insidiously

Meaning relationships

Synonyms: insidiously

Antonyms: none provided

History

Etymology

Etymology tree English pernicious Middle English -ly English -ly English perniciously From pernicious + -ly.

Across languages

Translations

4 source translations are retained for this English entry.

  • Dutch: schadelijk — in a pernicious manner
  • Dutch: destructief — in a pernicious manner
  • Dutch: verderfelijk — in a pernicious manner
  • Portuguese: perniciosamente — in a pernicious manner