What does the idiom half hearted mean?

The idiom "half-hearted" means lacking enthusiasm or commitment. It describes an action or effort done with minimal energy, interest, or dedication.

Here are some examples:

* "He gave a half-hearted apology, but it didn't seem sincere."

* "The team's performance was half-hearted, and they ended up losing the game."

* "She approached the task with a half-hearted attitude, so it wasn't surprising that she didn't finish it."

The idiom implies that the person or entity involved is not fully invested in the task or situation, resulting in a lackluster outcome.