nimble (
http://definr.com/nimble)
adj 1: moving quickly and lightly; "sleek and agile as a gymnast";
"as nimble as a deer"; "nimble fingers"; "quick of
foot"; "the old dog was so spry it was halfway up the
stairs before we could stop it" [syn:
agile,
quick,
spry]
2: mentally quick; "an agile mind"; "nimble wits" [syn:
agile]