Imposing rhymes with:
reimposing, composing, decomposing, reimposing, composing, decomposing, disposing, exposing, juxtaposing, opposing, overexposing, posing, predisposing, proposing, reimposing, supposing
Imposing sounds like:
impeaching, impugning, impugns, inefficiencies, inefficiency, infusing, infusions, invasions, invoicing, invoking