This doesn't match my experience with that term.

My son is diagnosed with ADHD and high IQ and labeled "gifted". He's very immature, has absolutely no method, is very impulsive and can't maintain focus for more than 20 minutes. He seems very much less mature than his peers in anything.

Yet, he just understands and remembers every single thing at school much better and faster than his peers. So I guess technically that makes him "gifted" but it's not a very useful gift. It just creates problems at school because he gets bored quickly but cannot be given more work to do because he gets exhausted quickly too!

I read recently a title of an article that said "gifted children are special needs children" and that marched my experience.