youth
noun
1 he had been a keen sportsman in his youth:
early years, early life, young days, teens, teenage years, adolescence, preadolescence, young adulthood, boyhood, girlhood, childhood;
immaturity;
prime, heyday, day, hour, time, springtime, salad days, bloom, peak, pinnacle, height;
Law minority;
rare juvenility, juvenescence.
▷antonyms adulthood, old age.