4 Syllables: SUUU
cautionary, centenary, coronary, Dictionary, functionary, luminary, mercenary, millinery, missionary, ordinary, pulmonary, sanguinary, seminaries, seminary, stationary, stationery, temporary, urinary, veterinary, visionary
5 Syllables: USUUU
confectionery, contemporary, discretionary, extraordinary, imaginary, inflationary, precautionary, preliminary, probationary, reactionary, traditionary
6 Syllables: UUSUUU
Found 34 words across 3 groupings.