untrustworthy
🇺🇸
/ʌnˈtrʌstwɜːrði/
🇬🇧
/ʌnˈtrʌstwɜːði/
not deserving trust or confidence
He was known to be untrustworthy, so no one believed his story about finding a treasure.
他以不可靠而著稱,所以沒有人相信他關於發現寶藏的故事。