紳士らしく

like a gentleman

→ 紳士
phrase Rare #36,510
like a gentleman The adverbial form of 紳士らしい, meaning “gentlemanly” or “in a gentlemanly manner.”
JA: 彼は紳士らしく、重い荷物を持ってあげた。
EN: He acted like a gentleman and carried the heavy luggage for her.

彼の礼儀紳士らしくない

His manners are not gentlemanly.

紳士らしく彼は立って自分の席を彼女に勧めた

Like a gentleman, he stood up and offered her his seat.

私は紳士らしく正装して運命を共にする

I'll go down with the ship in full formal attire, like a gentleman.

— タイタニック (1997)