Or search: treasonably, traitorously
3 Syllables: SUU
desperately, generally, preferably, separately
4 Syllables: SUUU
barbarously, celibacy, creditably, dangerously, definitely, delicacy, delicately, dexterously, generously, humorously, perilously, rigorously, sedulously, vigorously
4 Syllables: USUU
confederacy
5 Syllables: USUUU
degeneracy, effeminacy, incredulously, indefinitely, inevitably, inseparably, intelligibly, professionally
5 Syllables: UUSUU
irrevocably

Found 28 words across 5 groupings.