treacherous
US /ˈtretʃ.ɚ.əs/
UK /ˈtretʃ.ɚ.əs/

1.
traiçoeiro, desleal
guilty of or involving betrayal or deception
:
•
He was accused of being a treacherous spy.
Ele foi acusado de ser um espião traiçoeiro.
•
The politician's actions were seen as treacherous by his former allies.
As ações do político foram vistas como traiçoeiras por seus antigos aliados.
2.
traiçoeiro, perigoso
presenting hidden or unpredictable dangers
:
•
The mountain pass was treacherous in winter.
A passagem da montanha era traiçoeira no inverno.
•
The icy roads were treacherous for drivers.
As estradas geladas eram traiçoeiras para os motoristas.