1. not able to be influenced, persuaded, or controlled
2. (of a substance, esp metal) not easy to work, hammer, or form into different shapes
|Adj.||1.||unmalleable - difficult or impossible to shape or work|intractable
- not tractable; difficult to manage or mold; "an intractable disposition"; "intractable pain"; "the most intractable issue of our era"; "intractable metal"