Predictable rhymes with:
unpredictable, unpredictable, unpredictable, unpredictable, unpredictable, collectible, deductible, delectable, destructable, detectable, electable, ineluctible, injectable, intractable, respectable, retractable, tractable, tractebel, uncollectable, undetectable, unelectable, unpredictable
Predictable sounds like:
predictably, productively, protectively