perfidiously
English
Etymology
From perfidious + -ly.
Adverb
perfidiously (comparative more perfidiously, superlative most perfidiously)
- In a perfidious manner.
- Synonyms: dastardly, proditoriously, traitorly; see also Thesaurus:treacherously
From perfidious + -ly.
perfidiously (comparative more perfidiously, superlative most perfidiously)