modified
Flexible
Tractable
pliable and pliant both imply a capability of being easily bent, suggesting the suppleness of a wooden switch and, figuratively, a yielding nature or adaptability; plastic is used of substances, such as plaster or clay, that can be molded into various forms which are retained upon hardening, and figuratively suggests an impressionable quality; ductile applies to that which can be finely drawn or stretched out, as copper, and figuratively suggests being easily led; malleable is used of that which can be hammered, beaten, or pressed into various forms and figuratively suggests a readiness to be trained, changed, molded, etc. copper is malleable as well as ductile; at a malleable age
See pliable in Webster's New World Roget's A-Z Thesaurus II
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