Or search: withering, destructive, devastating, annihilative, disrespectful
3 Syllables: SUU
migrating, vibrating, violating
4 Syllables: SUUU
calculating, circulating, correlating, desolating, emulating, formulating, insulating, isolating, oscillating, regulating, simulating, speculating, stimulating, stipulating, undulating, vacillating
5 Syllables: USUUU
accumulating, articulating, assimilating, congratulating, gesticulating, manipulating

Found 25 words across 3 groupings.