Or search: rebel, heretic, bohemian, maverick, objector, dissenter, dissident, contestant, protestant, unconformist, nonconforming
2 Syllables: SU
Boris, brokerage, coarsest, Coleridge, cornice, Cornish, corpses, courses, courtship, Doris, Dorset, forage, forces, forest, forfeit, forges, formless, Georges, gorges, Horace, horses, lordship, Morris, mortgage, mortis, Norris, Norwich, orbis, porches, portage, shortage, shortest, sportive, storage, torches, warship, Warwick
3 Syllables: SUU
discourses
3 Syllables: USU
abortive, divorces, enforces, enormous, McCormick, supportive
4 Syllables: UUSU
reinforces
5 Syllables: UUUSU
anthropomorphic

Found 46 words across 5 groupings. Skipped 5 excess words of a similar stem.