Tethered rhymes with:
feathered, weathered, bothered, fathered, feathered, furthered, gathered, grandfathered, slathered, smothered, weathered, withered
Tethered sounds like:
tarditi, tardy, tarot, tarred, tart, tarte, tartt, tattered, teetered, terada, teradata, terre-haute, territo, tertia, there'd, theriot, third, thirtieth, thirty, thordia, thread, threaded, threat, threatt, threet, throat, throated, throaty, thwart, thwarted, thyroid, tiered, tirade, tirado, tired, torrid, tort, torte, torti, toured, tourette, toward, towered, trade, traded, trait, traudt, traut, trauth, tread, treadaway, treadway, treat, treated, treaty, tredway, trethewey, triad, tried, trite, tritt, trod, trot, troth, trott, trotted, troudt, trout, troutt, troyat, truda, trude, trudeau, trudia, trudie, trudo, trudy, truett, truitt, truth, tryart, tryout, turret, tutored, twardy