Perfidious

adjective/pɚˈfɪdi.əs/character
Definition
Treacherous and untrustworthy.
Synonyms
deceitful, disloyal, duplicitous, faithless, traitorous
In a sentence
  • A perfidious partner who shared our IP with competitors.
Tags
Source
vocabx/vocab.csv
added 2025-08-13