Word a Day
perfidious
What does perfidious mean?
perfidious (adjective): disloyal to what should command one's fidelity or allegiance.
Definition: Wiktionary, CC BY-SA 4.0.
How do you use perfidious in a sentence?
- The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments. (Tatoeba sentence #2259 by Dejo, CC BY 2.0 FR)
How do you pronounce perfidious?
/pɚˈfɪdiəs/ (IPA, American English). The app reads every word aloud.
Where does perfidious come from?
From Latin perfidiōsus (“treacherous”), from perfidia.
Etymology: Wiktionary, CC BY-SA 4.0.
Test yourself: do you know “perfidious”?
Tap an answer to check it. The same questions the app asks.
What does “perfidious” mean?
disloyal to what should command one's fidelity or allegiance
Right! That's what “perfidious” means.
having a full and rounded shape; chubby, somewhat overweight
Not quite: that's what plump means.
practical and functional, present for use, not just for show
Not quite: that's what utilitarian means.
needing or using up much energy; testing powers of endurance
Not quite: that's what arduous means.
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