1The youthful appearance of the actress, who was actually in her mid-40s, was due to her strict diet and exercise regimen.
2Was the youthful exuberance of the startup's CEO a key factor in its rapid growth and success?
3The artist's use of vibrant colors and bold brushstrokes gave her paintings a youthful, dynamic quality.
4Try to maintain a youthful outlook on life, even as you grow older and face new challenges.
5There is a growing trend towards youthful, androgynous fashion, with many designers incorporating unisex elements into their designs.