Uninterested (adjective)

Not having an interest or concern in something.

Origin:

The word "uninterested" is derived from the prefix "un-" meaning "not" or "reverse of" and "interested" which means having an interest or concern in something.

Examples:

1. He was uninterested in the conversation and kept staring out the window.
2. She was uninterested in the new job opportunity.
3. The students were uninterested in the lecture.
4. I am uninterested in playing this game.
5. The audience was uninterested in the performance.