'Climbable' definitions:

Definition of 'climbable'

(from WordNet)
adjective
Capable of being ascended [syn: ascendable, ascendible, climbable]
adjective
Capable of being surmounted [syn: surmountable, climbable]

Definition of 'Climbable'

From: GCIDE
  • Climbable \Climb"a*ble\, a. Capable of being climbed. [1913 Webster]