紳士たるに恥じないの英語

He has an education worthy of a gentleman.

His conduct is unworthy of a gentleman.

The conduct is worthy of a gentleman.

Such behaviour is inexcusable in a gentleman.

He is brazen-faced―barefaced―shameless―dead to shame.

Such conduct is unbecoming in a gentleman―improper for a gentleman―unworthy of a gentleman.

a perfect gentleman

the state of being shameless

I have a clear conscience―a good conscience.

He is gentleman-like―gentlemanly―He has a gentlemanly air.

to show oneself a gentleman

He has a gentleman-like air.

the state of a person not recognizing that something is shameful

to hang one's head for shame

Is he not a gentleman?

act like a gentleman

He seems not in the least abashed.

not befitting a gentleman

I am assuming you to be a gentleman.

a person who is shameless

He is a perfect gentleman.

scandalous behavior

If you are a gentleman, you must show yourself such.

to behave oneself like a gentleman―show oneself a gentleman

He is a perfect gentleman.

He is hardly a gentleman.

A gentleman, indeed!―（古文体にては）―A gentleman, forsooth!

a state of being shameless

a thoughtful gentleman

a man who possesses noble qualities