3 Syllables: SUU
audible, Chronicle, comical, conical, doggerel, hospital, laudable, logical, nautical, nominal, plausible, possible, probable, prodigal, soluble, topical, tropical, volatile, voluble
4 Syllables: USUU
abdominal, apocryphal, canonical, illogical, impossible, improbable, inaudible, inaugural, insoluble, methodical, phenomenal, symbolical, zoological
5 Syllables: UUSUU
anatomical, apostolical, archaeological, astronomical, biological, categorical, chronological, diabolical, ecological, economical, ethnological, genealogical, geological, ideological, indissoluble, inexhaustible, ironical, microscopical, morphological, mythological, neurological, ontological, pathological, pedagogical, periodical, philological, philosophical, physiological, psychological, sociological, technological, theological
6 Syllables: UUUSUU
7 Syllables: UUUUSUU
Found 69 words across 5 groupings. Skipped 4 excess words of a similar stem.