Standard Lemma guide

traitorously

adv · 2 senses · updated from the 2026-07-25 local source snapshot

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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

adv

Meaning 1

In a traitorous manner; treacherously.

Definition source: English Wiktionary via Wiktextract

Examples

  • The vizier traitorously revealed the location of the hiding princess in order to save himself.

Meaning relationships

Synonyms: dastardly, traitorly, traitorwise, disloyally, false, falsely, Judasly, perfidiously, proditoriously, ratlike, traitorously, treacherously, unfaithfully

Antonyms: none provided

2

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, treacherously, treasonably, false

Antonyms: none provided

History

Etymology

Etymology tree English traitorous Proto-Indo-European *leyg-der. Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Proto-West Germanic *-līkē Old English -līċe Middle English -ly English -ly English traitorously From traitorous + -ly.