2 Syllables: SU
3 Syllables: SUU
Biblical, clinical, criminal, difficult, digital, feasible, integral, liberal, literal, littoral, minimal, miracles, mythical, peaceable, pinnacle, pitiful, pivotal, readable, regional, seasonal, syllable, typical, visceral, visible, visual
3 Syllables: USU
3 Syllables: UUS
4 Syllables: SUUU
4 Syllables: USUU
additional, admissible, amenable, appreciable, conceivable, conditional, derivable, despicable, divisible, divisional, Episcopal, equivocal, explicable, hospitable, illiberal, invisible, medicinal, municipal, nutritional, occipital, original, permissible, political, pontifical, procedural, provisional, reciprocal, satirical, traditional, transitional, unspeakable
4 Syllables: UUUS
5 Syllables: UUSUU
aboriginal, inadmissible, inconceivable, individual, inexplicable, inhospitable, irresistible, irretrievable, monosyllables, unbelievable, unconditional, unequivocal, unimpeachable
Found 75 words across 8 groupings. Skipped 7 excess words of a similar stem.