adv
Meaning 1
In a treacherous manner.
Definition source: English Wiktionary via Wiktextract
Examples
- The former spy behaved treacherously.
Meaning relationships
Synonyms: dastardly, traitorly, traitorwise
Antonyms: none provided
Standard Lemma guide
treacherously
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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adverb
Meaning 2
in a disloyal and faithless manner
Definition source: Princeton WordNet 3.0
Examples
- he behaved treacherously
- his wife played him false
Meaning relationships
Synonyms: faithlessly, traitorously, treasonably, false
Antonyms: none provided
History
Etymology
Etymology tree English treacherous Middle English -ly English -ly English treacherously From treacherous + -ly.
Across languages
Translations
8 source translations are retained for this English entry.
- Finnish: kavalasti — in a treacherous manner
- Finnish: petollisesti — in a treacherous manner
- French: traîtreusement — in a treacherous manner
- Italian: proditoriamente — in a treacherous manner
- Italian: subdolamente — in a treacherous manner
- Portuguese: traiçoeiramente — in a treacherous manner
- Spanish: traidoramente — in a treacherous manner
- Swedish: förrädiskt — in a treacherous manner