Unassisted rhymes with:
delisted, enlisted, fisted, preexisted, resisted, tightfisted, unlisted, attested, bested, blacklisted, boosted, busted, coasted, costed, crusted, delisted, detested, digested, disinterested, divested, dusted, encrusted, enlisted, entrusted, fasted, feasted, fisted, flabbergasted, foisted, forecasted, guested, gusted, halsted, hosted, husted, lambasted, lusted, maladjusted, mistrusted, molested, ousted, outlasted, pasted, plaisted, posted, preexisted, readjusted, rearrested, reinvested, requested, resisted, retested, roosted, sandblasted, tightfisted, toasted, trusted, unadjusted, uncontested, unlisted, unmolested, untested, wixted, worsted, wrested
Unassisted sounds like:
umscheid, umstead, unangst, unannounced, unchecked, uncoat, uncoated, uncouth, unctad, uncut, unhinged, unionist, unionized, unissued, unjust, unmanaged, unmasked, unmixed, unquote, unsaid, unscathed, unseat, unseated, unset, unstated, unsteady, unsuited, unswayed, unused, unwashed