Or search: reject, deflate, belittle, puncture, disparage, depreciate, disapprove
4 Syllables: SUUU
abdicated, complicated, decorated, dedicated, delegated, devastated, estimated, generated, indicated, legislated, penetrated, separated
5 Syllables: USUUU
authenticated, disseminated, domesticated, intoxicated, investigated, necessitated
6 Syllables: UUSUUU
excommunicated

Found 19 words across 3 groupings.