"betrayed" in the verb sense
1. betray, bewray
reveal unintentionally
"Her smile betrayed her true feelings"
2. betray, sell
deliver to an enemy by treachery
"Judas sold Jesus"
"The spy betrayed his country"
3. fail, betray
disappoint, prove undependable to abandon, forsake
"His sense of smell failed him this time"
"His strength finally failed him"
"His children failed him in the crisis"
4. cheat on, cheat, cuckold, betray, wander
be sexually unfaithful to one's partner in marriage
"She cheats on her husband"
"Might her husband be wandering?"
5. denounce, tell on, betray, give away, rat, grass, shit, shop, snitch, stag
give away information about somebody
"He told on his classmate who had cheated on the exam"
6. deceive, betray, lead astray
cause someone to believe an untruth
"The insurance company deceived me when they told me they were covering my house"
Source: WordNet® (An amazing lexical database of English)
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