traitorously
/ˈtreɪtərəsli/
adverb
- In a way that betrays someone's trust or is disloyal to a person, group, or country.
- He traitorously sold military secrets to the enemy.
- She traitorously abandoned her teammates just before the final match.
- The advisor traitorously leaked confidential information to the press.
Synonyms
Antonyms