Hopefully we have here a native English speaker as well as Russian. Saying one is "tough" in English means he is very brave, courageous, hard to defeat and the like. For example, a tough guy is somebody you do not want to get into a fight with because he will beat you up. Another example is a character like John Rambo from the 80's movies First Blood, where he kills all his enemies and nobody can hurt him. Aside from physical toughness, being tough also refers to inner strength, that he is very strong inside and has no personal weaknesses. For example, the great Soviet goalkeeper Лев Яшин will forever be known as a tough goalkeeper because no matter how hard strikers attack him, he has no fear of them and invariably succeeds at blocking their goal attempts. I am very sure there are ways of saying it in Russian, so let's start. Как сказать по-русски?