2 Syllables: SU
bearded, biggest, bigot, billet, biscuit, Bishop, Bridget, briefest, cheapest, chiefest, civic, clearest, clinic, cricket, critic, cynic, dearest, deepest, digit, district, edict, Egypt, Enoch, epoch, Felix, finished, fittest, freest, Friedrich, frigate, gibbet, helix, hillock, keenest, leaflet, limit, lyric, meanest, millet, mimic, minute, minutest, myriad, mystic, mythic, nearest, peanut, period, Philip, Phillip, Phoenix, physic, picket, pivot, prefix, quickest, realist, reflux, richest, rickets, rivet, scenic, secret, spirits, sweetest, syrup, thickest, thicket, thinnest, ticket, visit, weakest, wicket, zealots
3 Syllables: USU
acetic, albeit, Archbishop, artistic, collegiate, deliberate, diminished, elicit, exhibit, explicit, extremest, extremist, idealist, idyllic, illicit, implicit, inhibit, linguistic, machinist, Pacific, prohibit, prolific, realistic, revisit, satiric, Semitic, severest, simplistic, sincerest, solicit, specific, statistic, strategic, stylistic, terrific, unfinished
3 Syllables: UUS
4 Syllables: UUSU
altruistic, analytic, atheistic, Calvinistic, catalytic, communistic, fatalistic, hieroglyphic, humanistic, idealistic, impolitic, journalistic, mechanistic, metaphysics, monolithic, nationalistic, naturalistic, optimistic, panegyric, paralytic, parasitic, pessimistic, rationalistic, scientific, socialistic, undiminished, unrealistic
5 Syllables: UUUSU
antagonistic, capitalistic, characteristic, electrolytic, encyclopedic, monopolistic, ritualistic, unscientific
6 Syllables: UUUUSU
7 Syllables: UUUUUSU
Found 150 words across 7 groupings. Skipped 48 excess words of a similar stem.