Unused rhymes with:
abused, accused, amused, bemused, confused, defused, diffused, disabused, excused, fused, infused, misused, mused, overused, recused, refused, suffused, transfused, underused, used
Unused sounds like:
umscheid, umstead, unangst, unannounced, unassisted, unchecked, uncoat, uncoated, uncouth, unctad, uncut, unhinged, unionist, unionized, unissued, unjust, unmanaged, unmasked, unmixed, unquote, unsaid, unscathed, unseat, unseated, unset, unstated, unsteady, unsuited, unswayed, unwashed