S: (adj) tractable, manipulable (easily managed (controlled or taught or molded)) "tractable young minds"; "the natives...being...of an intelligent tractable disposition"- Samuel Butler
S: (adj) ductile, malleable, pliable, pliant, tensile, tractile (capable 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"