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treacherous
01
裏切りの, 不誠実な
inclined to deceive or betray others for personal gain or advantage
Example
He proved to be treacherous when he leaked sensitive information to their competitors.
She was known for her treacherous nature, always looking out for her own interests at the expense of others.
The treacherous colleague sabotaged his coworkers' projects to climb the corporate ladder.
02
裏切りの, 危険な
dangerous for not being stable or reliable
