perniciously
adverb
perniciously is spelled P-E-R-N-I-C-I-O-U-S-L-Y: 12 letters. It appears about once in every 55 million words in written English, the 231,291st most frequent word form (wordfreq, 2021 data). As an adverb, perniciously means “In a pernicious manner” (English Wiktionary, September 2026).
How many letters and syllables are in perniciously?
| Letters | 12: P-E-R-N-I-C-I-O-U-S-L-Y |
|---|---|
| In writing | about once in every 55 million words; the 231,291st most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is perniciously?
Perniciously appears about once in every 55 million words in written English, the 231,291st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of perniciously
- more perniciously comparative
- most perniciously superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does perniciously mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adverb
- 1
In a pernicious manner.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Perniciously in Spanish, French, German and Portuguese
In the sense in a pernicious manner:
| Language | Words |
|---|---|
| Portuguese | perniciosamente |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does perniciously come from?
From pernicious + -ly.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).