Word Pronunciation & Dictionary

perfidiousness

Word Rarity Very rare

Frequency: Zipf frequency 0.00 in modern English

Syllables: per-fid-i-ous-ness
IPA

20

Scrabble Score

14

Letters

5

Syllables

10

Unique Chars

Meaning

noun

Unfaithfulness; deceitfulness; perfidy.

Uncountable

Example Sentences

"Not only Cato is vanquished by Caesar, but the treachery and perfidiousness of Syphax prevail over the honest simplicity and the credulity of Juba."

Etymology

Etymology tree English perfidious Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English perfidiousness From perfidious + -ness.

Usage

Uncountable

Inflected Forms

perfidiousnesses (plural)

Frequently Paired Words

perfidious perfidiously

Synonyms

double-dealing treachery treacherousness betrayal breach of promise breach of trust Judas kiss perfidiousness perfidy prodition Punic faith stab in the back

Questions

What does perfidiousness mean?: Unfaithfulness; deceitfulness; perfidy.
Where does perfidiousness come from?: Etymology tree English perfidious Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English perfidiousness From perfidious + -ness.

How to pronounce perfidiousness

Open the pronunciation page — Open the Speakur entry for “perfidiousness”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “perfidiousness”.
Repeat and practice — Say “perfidiousness” aloud, matching stress and vowels until it feels natural.