Cách sử dụng
The word 'undefeated' means that something or someone has not been defeated or has never lost. It is usually used to describe a person, team or group that has not lost any games, battles, or competitions. For example, you can say that a sports team is undefeated if they have won all their games so far in a season. The word 'undefeated' can also be used to describe a personal achievement such as an undefeated streak in a game or a successful run in a competition.