Intractable rhymes with:
retractable, tractable, tractebel, retractable, tractable, tractebel, retractable, tractable, tractebel, collectible, deductible, delectable, destructable, detectable, electable, ineluctible, injectable, predictable, respectable, retractable, tractable, tractebel, uncollectable, undetectable, unelectable, unpredictable