Enter a clue or pattern or both:
The Clue
Vigorous; active (8 letter answer)
The Answer
YOUTHFUL
Tags
Notes
The answer YOUTHFUL is so rare that it appears less than once every 2500 puzzles.
Definition
YOUTHFUL as an adjective:
1. (youthful, vernal, young) = suggestive of youth; vigorous and fresh; "he is young for his age"