noun ·Moderate ·College level

Definitions

Noun

1. 1
   Someone who betrays, or reveals confidential information; a squealer or informer.
2. 2
   a person who says one thing and does another wordnet
3. 3
   one who reveals confidential information to the police or other authority wordnet

Synonyms

All synonyms

double-crosserrattraitorinformertwo-timerbackstabber

Antonyms

All antonyms

backstabbeebetrayeeloyalist

Etymology

From betray + -er.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.