treacherously
treach-er-ous-ly
adverb
In a way that involves betrayal, disloyalty, or dangerous deception.
"The ice was treacherously thin on the lake."
Thesaurus
Synonyms: treasonably, faithlessly, false, traitorously
treach-er-ous-ly
In a way that involves betrayal, disloyalty, or dangerous deception.
"The ice was treacherously thin on the lake."
Synonyms: treasonably, faithlessly, false, traitorously