Opinionated means having strong beliefs that you express confidently and frequently. An opinionated person doesn't just quietly think something; they speak up about it, often without being asked. If your friend has strong views about which books are best, which sports team deserves to win, and the right way to organize a science fair project, you might describe them as opinionated.

The word carries a hint of stubbornness. Someone who's simply thoughtful considers different perspectives, but someone who's opinionated tends to stick firmly to their own views. An opinionated restaurant critic might declare that a certain type of pizza is the only kind worth eating, dismissing all other styles. An opinionated coach might insist there's only one correct way to shoot a free throw.

Being opinionated isn't always negative. People who care deeply about something often develop strong opinions through experience and reflection. A marine biologist might be opinionated about ocean conservation because she's spent years studying coral reefs. The challenge comes when opinionated people stop listening to others or refuse to consider that they could be wrong. The best thinkers hold their opinions firmly but remain curious enough to change their minds when they encounter better evidence or reasoning.