Juvenescent

adj.energetic, hopefulliterary

What it means

Becoming youthful, fresh, or vigorous again.

Reach for it when describing visible renewal with rare literary or technical language

Juvenescent shoots appeared after the damaged branches were pruned.

everyday
freshening
appearance or atmosphere is becoming brighter
not when Freshening can be superficial and lacks the return of vigor.
everyday
reviving
strength or activity is returning after weakness
not when Reviving can also mean stimulating someone else.
warm
renewing
fresh life or purpose is actively returning
not when Renewing can describe the thing that causes renewal rather than what is changing.
professional
rejuvenated
youthful energy or condition has already been restored
not when Rejuvenated describes the result, while juvenescent emphasizes an ongoing change.
professional
resurgent
energy or influence rises strongly after decline
not when Resurgent suggests forceful comeback rather than gradual youthfulness.
formal
regenerating
new tissue or structure is literally developing
not when Regenerating sounds technical and may imply replacement, not youthfulness.

juvenescent growth
Juvenescent growth covered the slope after the spring rain.
juvenescent woodland
The juvenescent woodland drew insects back to the clearing.
juvenescent energy
Juvenescent energy returned to the workshop after the new apprentices arrived.

Juvenescent is rare and often biological; rejuvenated is clearer for most figurative uses.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.