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