Definition: The phrase "be amiss" means that something is not right, not correct, or not as it should be. It often implies that there is a problem or something is wrong.
While "be amiss" is not part of a specific idiom, you might come across phrases like: - "Something smells fishy" - indicating that something seems wrong or suspicious. - "Out of sorts" - meaning feeling unwell or not quite right.
In summary, "be amiss" is a phrase used to indicate that something is wrong or not functioning as it should be. It's useful in both written and spoken English, especially when discussing problems or concerns.