Superstitious rhymes with:
factitious, fictitious, repetitious, surreptitious, ambitious, auspicious, capricious, delicious, expeditious, factitious, fictitious, injudicious, judicious, malicious, nutritious, pernicious, propitious, repetitious, seditious, surreptitious, suspicious, vicious
Superstitious sounds like:
shipwrights, suffragettes, suffragists, supercuts, supersedes