perfidement
French, adverb/pɛʁ.fid.mɑ̃/
perfidement is spelled P-E-R-F-I-D-E-M-E-N-T (11 letters) and appears about once in every 15 million words in written French, the 126,551st most frequent French word form (wordfreq, 2021 data). Perfidement is a French adverb meaning “treacherously, perfidiously” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Avec perfidie”.
What does perfidement mean in English?
adverb
- 1
treacherously, perfidiously
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
adverb: 1. Avec perfidie.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
How do you pronounce perfidement?
- /pɛʁ.fid.mɑ̃/
- \pɛʁ.fid.mɑ̃\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is perfidement in French?
perfidement appears about once in every 15 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).