Uninformed means lacking knowledge or information about something. When you're uninformed about a topic, you simply haven't learned about it yet or don't have the facts you need to understand it well.

A student might be uninformed about the causes of the American Revolution before studying that unit in history class. Someone new to chess would be uninformed about opening strategies until they learn them. Being uninformed isn't the same as being unintelligent: it just means you haven't encountered that particular information yet.

The word often appears when people make decisions or form opinions without knowing important facts. If you're uninformed about the rules of a game, you might make moves that don't make sense. If voters are uninformed about what's actually in a proposed law, they can't make thoughtful choices about whether to support it.

Sometimes people stay uninformed on purpose by ignoring available information, which is different from simply not having had the chance to learn yet. The key is recognizing when you're uninformed about something important and then taking steps to learn more. Everyone is uninformed about countless topics. The question is whether you're willing to seek out good information when it matters.