Definition of young at heart
- The band members are still young at heart.
: being in the first or an early stage of life, growth, or development
: of an early, tender, or desirable age for use as food or drink
: young persons : youth
: immature offspring
: a single recently born or hatched animal
What made you want to look up young at heart? Please tell us where you read or heard it (including the quote, if possible).