Unscathed rhymes with:
bathed, bathed, breathed, clothed, loathed, mouthed, sheathed, smoothed, soothed, swathed
Unscathed sounds like:
umscheid, umstead, unangst, unannounced, unassisted, unchecked, uncoat, uncoated, uncouth, unctad, uncut, unhinged, unionist, unionized, unissued, unjust, unmanaged, unmasked, unmixed, unquote, unsaid, unseat, unseated, unset, unstated, unsteady, unsuited, unswayed, unused, unwashed