1) Acrobatic 2) Active 3) Athletic 4) Energetic 5) Flexible 6) Lithe 7) Supple 8) Vigorously active 1) Acrobatic 2) Agile 
• (a.) Alt. of Gymnastical • (n.) A gymnast.
Gym·nas'tic (jĭm*năs'tĭk), Gym*nas'tic*al (-tĭ*k a l) adjective [ Latin gymnasticus , Greek Gym·nas'tic noun A gymnast. [ Obsolete]
[adj] - of or relating to or used in exercises intended to develop strength and agility
gymnastic Relating to or involving gymnastics or demonstrating athleticism and agility.
adjective of or relating to or used in exercises intended to develop strength and agility; `gymnastic horse`
Combination of fences placed at relative distances to each other, used in the training of the jumping horse.
of or pertaining to physical exercises that develop and demonstrate strength, balance, and agility, esp. such exercises performed mostly on special equipment.