# treacherously

**Pronunciation:** /ˈtɹɛtʃəɹəsli/ · TRETCH-er-us-lee

**CEFR level:** C1

**Part of speech:** adverb

## Meaning

In a way that involves betrayal or is dangerously unreliable and deceptive.

## Examples

- The politician acted treacherously, breaking promises to his constituents.
- The ice on the lake looked solid but was treacherously thin in places.
- She felt the ground shift treacherously beneath her feet during the earthquake.

## Synonyms

- deceptively — Suggests misleading appearance.
- perfidiously — Emphasizes deliberate disloyalty and breach of trust.
- faithlessly — Highlights a lack of loyalty or commitment.
- insidiously — Implies a gradual, subtle, and harmful development.

## Antonyms

- loyally — With faithfulness and devotion.
- reliably — In a consistent and trustworthy manner.

## Collocations

- treacherously slippery — The mountain trail was treacherously slippery after the overnight rain.
- treacherously thin — The ice on the pond was treacherously thin in the center.
- treacherously calm — The sea appeared treacherously calm before the storm hit.

Canonical URL: https://anaversity.com/dictionary/english/treacherously

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