Here's what rhymes with expliciteness.
explicitness implicitness Words that almost rhyme with expliciteness
priggishness derisiveness willingness fierceness permissiveness spirituous submissiveness spiritless duplicitous piggishness griminess precipitous siliceous cliquishness skittishness filminess ubiquitous litigants iniquitous restrictiveness jinrickshas jinrikshas coincidence vindictiveness serendipitous descriptiveness certificates distinctiveness significance insignificance