Or search: misdeed, enormity, lewdness, salacity, obscenity, bawdiness, immodesty, impropriety, misbehavior, misbehaviour, outrageousness
3 Syllables: SUU
decency, decently, evenly, frequencies, frequency, frequently, leniency, recently, regency
3 Syllables: UUS
vehemently
4 Syllables: USUU
conveniently, expediency, infrequently, obediently, unevenly, unfrequently
5 Syllables: UUSUU
inconveniently

Found 17 words across 4 groupings.