English Reference

Word

betrayed

Phoneticsbe·trayed, stress on the second syllable

US/bɪˈtɹeɪd/

UK/bɪtɹˈeɪd/

Definitions

01broken trust

B2 · Upper Intermediate

v. to have hurt someone who trusted you by helping their enemy or being dishonest.

v. to have been disloyal to a person, country, or group by acting in the interest of an opponent.

“He felt hurt because his best friend betrayed his secret to the whole school.”

“The intelligence officer was convicted after it was discovered he had betrayed his country by selling classified documents to a foreign power.”

Usage

Transitive; requires a direct object representing the person or entity whose trust was broken.

Synonyms

deceiveddouble-crossed

02revealed a secret

C1 · Advanced Literary

v. to have accidentally shown a feeling or a secret that you wanted to hide.

v. to have unintentionally revealed information or an internal emotional state.

“His shaking hands betrayed how nervous he really was during the interview.”

“Although she maintained a calm and professional exterior, the slight tremor in her voice betrayed her deep anxiety about the board's decision.”

Usage

Often used with abstract subjects like 'eyes', 'voice', or 'expression'.

Antonyms

03feeling hurt by disloyalty

B2 · Upper Intermediate

adj. feeling sad and angry because someone you trusted was not loyal to you.

adj. experiencing the emotional distress resulting from a violation of trust or a breach of confidence.

“She felt betrayed when she found out they had started the project without her.”

“The employees felt deeply betrayed by the management's sudden decision to outsource their department after years of loyal service.”

Usage

Used as a predicative adjective after verbs like 'feel' or 'look'.

Synonyms

Antonyms

Real-World Examples

“Another NDF member told us he would never forget Tice's expression as he realised he had been betrayed.”
BBC News 17 Sept 2026
“Gianni Infantino told a reporter “I’ll see you at the hairdresser’s” after he was asked whether he had betrayed football over his aborted World Cup sell-off plan.”
The Guardian 22 Aug 2026

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference