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