彼は自分の主張を立証できないことをとても恥じた。の英語

He was very ashamed of not being able to make his point.

He was not ashamed to admit his ignorance.

He didn't realize the offensiveness of his remark.

He was ashamed of his ignorance.

He recognizes the error of his ways.

He refuses to recognize (that) he's wrong.

From an objective viewpoint, his argument was far from rational.

He ought to be ashamed of his ignorance.

He exhibited no remorse for his crime.

I cannot help doubting his sincerity.

He admitted his own unsuitability for the task.

He blushed at his folly.

His daily behavior is not consistent with his principles.

He was ashamed of not having worked hard.

Such was his pride that he could not bring himself to ignore the insult.

He refused to commit himself on the subject.

He blushed at his foolish mistake.

He didn't have the decency to admit that he was wrong.

He's not so constituted that he can rest on his laurels.

His sophomoric views showed that he didn't understand the topic well.

I found I was no match for him.

I realized he was more than a match for me.

He brazenfacedly claimed to be innocent.

his transparent self-justification was unacceptable

He was slow to admit his mistakes.

He tried to convince them of his innocence.

He's rigid in his opinions.

He was not about to admit his mistake.

There is no room for doubt as to his honesty.

His honesty is above suspicion.