unreliable

Imagine you're planning a big adventure with a friend. If they often cancel plans at the last minute or give information that turns out to be wrong, you might describe them as unreliable. It means you cannot count on them again and again to do what they say or to give correct information.

An unreliable car might break down unexpectedly, an unreliable witness in court might change their story, and an unreliable news source might spread false information. The key is a lack of consistency: you do not know what to expect. Think of it like building with blocks. If some are wobbly or broken, the whole structure becomes unreliable.

To describe something as "unreliable" is to say that it isn't able to be consistently depended on or trusted. It suggests a pattern of inconsistency, inaccuracy, or failure to perform as expected. This can apply to people, objects, information, and even systems.

For example, an unreliable narrator in a story might distort the truth, leading you to question everything they say. A weather forecast that frequently predicts sunshine when it rains is unreliable. An unreliable machine breaks down often, making it difficult to complete tasks efficiently.

The degree of unreliability can vary. Something might be "somewhat unreliable," meaning it occasionally fails, or "completely unreliable," meaning you should never count on it. It's a strong word that implies a lack of trustworthiness and predictability. You wouldn't want an unreliable pilot flying your plane, nor would you trust an unreliable friend with a secret.

The opposite of unreliable is dependable, trustworthy, or consistent. So the next time something lets you down again and again, remember the word "unreliable." It perfectly captures that feeling of being unable to count on something or someone.