Enter a clue or pattern or both:
The Clue
Retaining juvenile characteristics (8 letter answer)
The Answer
NEOTENIC
Tags
Notes
The answer NEOTENIC is so rare that it appears less than once every 2500 puzzles.
Definition
NEOTENIC as an adjective:
1. (neotenic, neotenous) = of or relating to or characterized by neoteny; "neotenic development"