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betrayer

betrayer

26 6.3
A person who breaks someone's trust by revealing secrets
  • noun
  • /bɪˈtreɪər/
translation icon : traidor
  • Trust was shattered when she discovered that he was a betrayer who shared her secrets.

For Dante, the bottom of hell was filled with betrayers.

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Examples

  • He was labeled a betrayer after he leaked confidential information to the press.

  • The former will lead to charges that Abu Mazen is a betrayer, and not only from Hamas.

    Academic text (2007)
  • One of us is a betrayer.

  • Let the betrayer of the Law be taken from our courts.

  • I'm afraid you might have a betrayer.

  • Was I to be betrayed or to be a betrayer?

    Fiction book (1998)
  • Sometimes he was unsure whether he was the betrayer or the betrayed.

    Fiction book (1998)
  • Dail felt as though he was both betrayed and a betrayer.

    Fiction book (1992)
  • But you've become a betrayer, Mr. Hoover.

  • Many believe Judas Iscariot, the betrayer of Jesus, was the 13th person to join the table that night.

    Blog text (24)

Synonyms

traitor
vsbetrayer
  • Offensive
381 3.9

A person who breaks the trust of their country, group, or friend to help an enemy

is broader, covering personal disloyalty as well as public allegiance
rat
vsbetrayer
  • Offensive
330 7.3

A person who betrays a group by telling secret information to outsiders

is a neutral general term for breaking trust across contexts
informer
vsbetrayer
27 6.0

A person who secretly tells police about someone else's crimes to get money or protection

is general disloyalty, not only giving information to authorities
leaker
vsbetrayer
16 7.3

A person who secretly gives private information to people who should not have it

is broader, covering many forms of disloyal behaviour beyond disclosure
turncoat
vsbetrayer
  • Offensive
13 8.2

A person who leaves their group to join the opposite side

is broader and covers many kinds of disloyal acts
backstabber
vsbetrayer
  • Offensive
8 5.1

A person who acts friendly but secretly betrays someone who trusts them

is general disloyalty, not only harm after a friendly show
squealer
vsbetrayer
  • Offensive
6 8.1

A person who tells the police about other people's crimes

is general disloyalty, not only the act of informing
double-crosser
vsbetrayer
  • Offensive
2 6.8

A person who pretends to be loyal but betrays someone

is simple disloyalty without that specific deceptive pretending
blabber
vsbetrayer
  • Offensive
2 7.9

A person who tells secrets to the police or other people in power

is deliberate breach of trust rather than careless loose talk
ratter
vsbetrayer
  • Offensive
2 9.9

A person who betrays their friends or group

is general disloyalty, not limited to leaving a cause
treacher
vsbetrayer
  • Offensive
1 9.9

A person who betrays trust or their country

is the modern common term for the same idea
double-dealer
vsbetrayer
  • Offensive
1 8.5

A person who pretends to be a friend but secretly works against others

is direct breach of trust or loyalty rather than mere hypocrisy
tattler
vsbetrayer
  • Offensive
1 8.1

A person who tells secrets about other people

is deliberate disloyal action rather than casual gossiping
snitcher
vsbetrayer
  • Offensive
1 8.7

A person who secretly tells the police about other people's crimes

is broader disloyalty, not only reporting to authorities
traitress
vsbetrayer
  • Archaic
9.9

A woman who betrays people or groups she should support

is the same meaning but used for a woman rather than neutral
Judas
vsbetrayer
  • Offensive
8.4

A person who betrays a friend while seeming loyal

is general disloyalty not limited to harming a friend
taleteller
vsbetrayer
  • Informal
8.8

A person who tells other people's secrets and spreads rumors

is focused on breaking trust intentionally rather than careless talk
exposer
vsbetrayer
6.0

A person who reveals secrets or dishonest acts to the public

is about personal disloyalty rather than public exposure of secrets
rogue of the deepest dye
vsbetrayer
  • Offensive
9.9

A person who is very dishonest and cannot be trusted

is specifically about breaking trust, not general dishonesty

Antonyms

42 4.8

A person who supports a government, leader, or cause during a revolt

How Disloyal

traitor
  • Offensive
381 3.9
turncoat
  • Offensive
13 8.2
betrayer
26 6.3
backstabber
  • Offensive
8 5.1

Surface Forms

betrayer singular
betrayers plural

Morphology

betrayer = betray (transparent) = betray + er

Productive agent nominalization: adding '-er' to the verb 'betray' yields 'one who betrays', a directly predictable meaning for learners.

Etymology

Betrayer comes from the verb betray, which originally meant to 'hand over' someone to an enemy. It is the same idea as in traitor, so a betrayer is someone who breaks trust by handing people or secrets to others.