unforgivable
US
UK unforgivable adj: (cannot be forgiven)
SC 不可原谅的 bù kě yuán liàng de
SC 不可饶恕的 bù kě yuán liàng de，bù kě ráo shù de
Colin's refusal to go to his brother's funeral was unforgivable.
unforgivable sin n: ([sth] that cannot be pardoned)
SC 不可饶恕的过错 bù kě ráo shù de guò cuò
SC 不能原谅的罪过 bù kě ráo shù de guò cuò，bù néng yuán liàng de zuì guò
SC 罪无可恕 bù kě ráo shù de guò cuò，zuì wú kě shù
The Catholic church considers suicide an unforgivable sin.