back down: meaning and explanation
If you back down, then you accept or admit that you are wrong about something, or you accept that you have lost an argument or fight. e.g. The argument went on all night, but my brother eventually backed down and apologised.
This phrasal verb can be used negatively to describe a situation in which someone will not admit that they are wrong or have lost an argument. They won’t back down. e.g. It was obvious that he had made a big mistake, but he wouldn’t back down.
Have a go at these micro-dictation exercises to hear this expression being used in context – how much can you understand?
About the sentence
…He’s so stubborn…
If someone is stubborn, then it is difficult to change their mind, attitude or position on something, even if they are probably wrong. This is synonymous with the word determined, but has more negative connotations.
…he knows he’s in the wrong…
If you say that someone involved in an argument is in the wrong, then you are saying that they are responsible for the argument or have done something bad or morally wrong. e.g. Sorry, but I’m not the one who is in the wrong here.