Definitions of youthful

1. Youthfulness.

2. Youthfully.

3. suggestive of youth; vigorous and fresh

4. Of or pertaining to the early part of life; suitable to early life; as, youthful days; youthful sports.

5. Pertaining to the early part of life; fresh; vigorous; immature.

6. Pertaining to youth or early life: young: suitable to youth: fresh: buoyant, vigorous.

7. Young; befitting youth; fresh; vigorous.

8. Pertaining to youth; being still young.

9. Young; pertaining to the early part of life; suitable to the first part of life; full of youth; fresh; vigorous, as in youth.

10. Pert. to the early part of life; suitable to the first part of life; fresh; vigorous as in youth.