Ruthless describes someone or something that doesn't show mercy or compassion.
Imagine being in a competitive business world where every person has to fight for success. A ruthless person would do whatever it takes to win, even if it means hurting others or stepping on them. They might be willing to take risks and make tough decisions without thinking about how they'll affect others. This behavior can sometimes be seen as admirable, like in a movie hero who will stop at nothing to save the day. But in real life, being ruthless can also lead people to act cruelly or unfairly.
Without pity or compassion; cruel, pitiless.
