Unbolted rhymes with:
assaulted, catapulted, defaulted, exalted, exulted, faulted, insulted, jilted, jolted, pelted, quilted, resulted, revolted, stilted, wilted
Unbolted sounds like:
umfleet, umphlett, unaffiliate, unaffiliated, unbolt, unbuilt, unemployed, unfilled, unfold, unfolded, unveiled