Lightweight
Definition 1 of 4
Pro Tip 1/2
Comparative Context
Often used to compare one person's abilities or qualities against others. Despite his efforts, he's still a lightweight in the world of chess.
Pro Tip 2/2
Not for Disrespect
Even if it means 'less serious', it's not always used to disrespect someone. He's a bit of a lightweight, but we love his cheerful attitude.