WordNet sense 1 (susceptible to being led or directed):

fictile

WordNet sense 2 ((often followed by `of' or `to') yielding readily to or capable of):

susceptible

WordNet sense 3 (capable of being shaped or bent or drawn out):

ductile, malleable, pliant, tensile, tractile

WordNet sense 4 (having or given a form or shape):

formed

WordNet sense 5 (able to adjust readily to different conditions):

elastic

WordNet sense 6 (capable of adapting (of becoming or being made suitable) to a particular situation or use):

adaptable

WordNet sense 7 (capable of being bent or flexed or twisted without breaking):

bendable

WordNet sense 8 (able to flex; able to bend easily):

flexible, flexile