An action or behavior that goes against what's considered moral and right is sinful. When we talk about something being sinful, it doesn't necessarily mean it's extremely bad, but rather that it's not good for us or others.
The word "sinful" often comes up in conversations about things like food, where some people might say certain foods are sinful because they're high in sugar or fat and not great for our health. Others might call a new pair of shoes sinful because they're expensive and not something we really need. Even movies or TV shows can be labeled as sinful if they have content that's considered mature or not suitable for all audiences. Generally, people use the word "sinful" to describe things that are fun but perhaps not the best choice for us in the long run.
Constituting a sin; being morally or religiously wrong; wicked; evil
