Selective means carefully choosing some things while leaving others out, based on specific standards or preferences. When you're selective about which books you read, you don't just grab any book from the library shelf. You think about what interests you, what you'll learn, or what kind of story you're in the mood for.

Being selective means exercising judgment and making deliberate choices. A selective eater picks certain foods and avoids others. A college that's highly selective accepts only a small percentage of applicants, choosing students who meet its particular standards. A museum might be selective about which paintings to display, showing only works that fit its current exhibition.

The word suggests thoughtfulness rather than randomness. If you're selective about your friends, you choose to spend time with people who share your values and treat you well. Scientists use selective breeding to develop plants or animals with desirable traits, like tomatoes that grow well in cold weather or dogs bred for gentleness with children.

Being selective with your time and attention means focusing your energy on what matters most to you, rather than trying to do everything at once.