lǎo​shào​nián

young person with an old soul

Senses

老少年 lǎo​shào​nián young person with an old soul

A young person who behaves with the maturity or attitude of an adult.

老少年 lǎo​shào​nián energetic senior

An older person who has the spirit, appearance, or air of a young person.

References

antonym 老少年/老少年 少老头/少老頭
same_as 老少年/老少年 雁来红/雁來紅
same_as 十样锦/十樣錦 老少年/老少年