Slathered rhymes with:
gathered, bothered, fathered, feathered, furthered, gathered, grandfathered, smothered, tethered, weathered, withered
Slathered sounds like:
sheltered, shouldered, solidarity, sweltered
gathered, bothered, fathered, feathered, furthered, gathered, grandfathered, smothered, tethered, weathered, withered
sheltered, shouldered, solidarity, sweltered