English → Latin
“perfidiously” in Latin
perfidiōsustreacherous, perfidiousīnfidēlisunfaithful; treacherous, disloyal; unbelieving, infidelperfidusthat breaks one's promise; false; faithless; dishonest; disloyal; deceitful; treacherous; unsafe; dangerous
Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864
perfidiously
perfidiose (☞ perfide not before the Silver Age); infideliter; sine fide. To act perfidiously, perfide or fraudulenter agere.
Quick answer
- What is the Latin word for perfidiously?
- The usual Latin words for “perfidiously” are perfidiōsus, īnfidēlis, perfidus. The right choice depends on the sense; see the distinctions below.
Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.