unimaginable

An unimaginable thing is too big or weird for our brains to understand or picture. It's something that would shock or amaze us if we heard about it.

When people use "unimaginable" in a sentence, they often mean something that seems impossible or unbelievable because of its scale, complexity, or just plain weirdness. For example, if someone says, "The damage from the hurricane was unimaginable," they're saying that it was so bad and widespread that we can't even begin to think about how bad it really was. Sometimes people use "unimaginable" in a more abstract way, like when talking about a feeling or emotion – for instance, "The pain of losing a loved one is unimaginable." In this case, they're saying that the pain goes beyond what most people can imagine or understand.