2 Syllables: SU
billet, Bridget, British, civic, clearest, clinic, cricket, critic, critic's, cryptic, cynic, digit, district, finis, finish, Finnish, fitted, flitted, gibbet, Ibid, knitted, limits, liquid, lyric, mimic, mitted, mystic, mythic, Philip, Phillip, Phyllis, physic, picket, picnic, pitted, quickest, quitted, rickets, signet, spirit, thickest, thicket, thinness, thinnest, ticket, visit, Willis, witted
3 Syllables: USU
acquitted, addicted, afflicted, artistic, befitted, committed, conflicted, depicted, diminish, elicit, emitted, evicted, exhibit, idyllic, inflicted, linguistic, omitted, Pacific, permitted, predicted, prolific, realistic, remitted, resistless, restricted, revisit, satiric, Semitic, simplistic, solicit, specific, statistic, stylistic, terrific, transmitted, unfinished, unfitted
4 Syllables: UUSU
altruistic, analytic, atheistic, Calvinistic, catalytic, communistic, fatalistic, hieroglyphic, humanistic, idealistic, impolitic, inauspicious, journalistic, mechanistic, metaphysics, monolithic, nationalistic, naturalistic, optimistic, panegyric, paralytic, parasitic, pessimistic, rationalistic, scientific, socialistic, undiminished, unrealistic, unrestricted
5 Syllables: UUUSU
antagonistic, apocalyptic, capitalistic, characteristic, electrolytic, monopolistic, ritualistic, unscientific
6 Syllables: UUUUSU
7 Syllables: UUUUUSU
Found 126 words across 6 groupings. Skipped 23 excess words of a similar stem.