Or search: drearily
3 Syllables: SUU
busily, chivalry, miserably, Sicily, visually, wistfully
4 Syllables: USUU
conditionally, initially, judicially, officially, originally, provisionally, traditionally
5 Syllables: UUSUU
artificially, beneficially, individually, unconditionally, unofficially

Found 18 words across 3 groupings.