Synonyms of supreme

1 Syllable
top, head, main, last, royal, chief, best, first
2 Syllables
prime, topflight, high-class, topmost, besting, ender, closing, ripping, fined, topper, matchless, braggest, perfect, loftiest, finer, reigning, laster, mainer, leading, chiefest, fining, superb, crowning, highest, faultless, ruling, peerless, major, first-rate, utmost, rearmost, crashing, final, maxi, mostest, lastest, bang-up, top-notch, ideal, tiptop
3 Syllables
alltime, extreme, lattermost, defectless, monarchal, ascendent, surpassing, principals, paramount, sovereign, powerful, terminal, marvelous, maximums, unmatched, zenithal, extremest, governing, almighty, virtuosic, cardinal, masterful, principal, ascendant, sovereigns, extremer, towering, unflawed, iconic, climactic, divined, dominant, maximal, preeminent, towery, prevailing, transcendent, mainline, maximum, have-it-all, endwise, aftermost, prepotent, excellent, foremost, top-drawer, especial, intense, tyrannous
4 Syllables
presidential, high-powered, self-governed, pre-eminent, unequalled, unrivalled, unmatchable, consummate, monocratic, ultimate, inarguable, unsurpassed, unexcelled, all-consuming, unapproached, culminating, departmental, overweighing, consummating, absolutist, predominant, second-to-none, unequaled, unrivaled, absolute, omnipotent, unexampled, overriding, all-embracing, infinite, best-quality, climatical
5 Syllables
undisputable, unparagoned, indefectible, super-eminent, gubernatorial, inimitable, unsurpassable, supertemporal, incontestable, overbalancing, unassailable, incomparable, supereminent, unparalleled, establishable, superlative, highest-quality