Adjectives

(s)plastic, pliantcapable of being influenced or formed“the plastic minds of children”, “a pliant nature”
(s)ductile, malleable, pliable, pliant, tensile, tractilecapable of being shaped or bent or drawn out“ductile copper”, “malleable metals such as gold”, “they soaked the leather to made it pliable”, “pliant molten glass”, “made of highly tensile steel alloy”
(s)elastic, flexible, pliable, pliantable to adjust readily to different conditions“a flexible personality”, “an elastic clause in a contract”, “a pliable person”
(s)bendable, pliable, pliant, waxycapable of being bent or flexed or twisted without breaking“a flexible wire”, “a pliant young tree”