Repetitious rhymes with:
factitious, fictitious, superstitious, surreptitious, ambitious, auspicious, capricious, delicious, expeditious, factitious, fictitious, injudicious, judicious, malicious, nutritious, pernicious, propitious, seditious, superstitious, surreptitious, suspicious, vicious
Repetitious sounds like:
rabbits, rafts, rapids, raptis, ravitch, ravitz, rebates, refutes, repeats, repudiates, rifts, rivets, robidoux, robot's, robotic, robotics, robots