youthfulness
noun/ˈjuːθflnəs/
/ˈjuːθflnəs/
[uncountable]- the fact of being young
- the youthfulness of much of the population in nearly all these countries
- the quality of looking or acting like somebody who is young or younger than they actually are
- She graces the stage with elegance and youthfulness.
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youthfulness