Feasible rhymes with:
infeasible, unfeasible, infeasible, unfeasible, advisable, analyzable, disposable, divisible, excusable, exercisable, fusible, implausible, inadvisable, inexcusable, infeasible, invisible, plausible, realizable, recognizable, reusable, sizable, sizeable, unfeasible, unrecognizable, unusable, usable, visible
Feasible sounds like:
feasibly, fishbowl, fixable, fusible