Or search: incomparably
3 Syllables: SUU
favorably, miserably, preferably
4 Syllables: SUUU
admirably, confidently, consequently, controversy, favourably, honorably, honourably, tolerably
5 Syllables: USUUU
considerably, incomparably, incompetency, inexorably, inseparably, intolerably, unalterably, unfavorably, unfavourably

Found 20 words across 3 groupings.