As a noun nimber
is any of a set of number-like objects, also called the grundy numbers, used in.
As an adjective nimbler is
(nimble).
nimbler
English
Adjective
(head)
(nimble)
nimble
English
Adjective
(
er)
Quick and light in movement or action.
- He was too nimble for the assailant and easily escaped his grasp.
Quick-witted and alert.
- She has a nimble mind and can improvise in any situation.