Factitious rhymes with:
fictitious, fictitious, repetitious, superstitious, surreptitious, ambitious, auspicious, capricious, delicious, expeditious, fictitious, injudicious, judicious, malicious, nutritious, pernicious, propitious, repetitious, seditious, superstitious, surreptitious, suspicious, vicious
Factitious sounds like:
facades, facet's, facetious, facets, facts, fajitas, fascists, fastidious, fasts, faucets, faught's, faustus, feasts, fests, festus, fictitious, fight's, fights, fists, fixates, fojtik, fosdick, fossett's, foxwoods, fujitsu, fujitsu's, fustok