Uncertain is when something isn't clear or definite.
When we say that something is uncertain, it means we don't have all the facts or information we need. We might not be sure what's going to happen next, or we might be waiting for more details before making a decision. For example, let's say you're planning a trip and you check the weather forecast online. It says there's a chance of rain, but it's not definite - that means the weather is uncertain, and you might want to bring an umbrella just in case. Uncertainty can be frustrating, but it's also normal when we don't have all the answers.
(with "the") Something uncertain.
Not certain; unsure.
