1To become younger or to feel rejuvenated; to regain a youthful appearance or energy. An intransitive verb describing becoming or feeling younger.
毎朝のジョギングを始めてから、気分が若返ったと感じる。
Since starting a morning jog, I feel rejuvenated.
その化粧品は肌が若返ると宣伝されているが、効果は人による。
That cosmetic is advertised to make the skin look younger, but effects vary by person.
庭を手入れしたら、家全体が若返ったように見える。
After tidying the garden, the whole house looks rejuvenated.