Synonyms of dominant

1 Syllable
top, main, chief, first, star
2 Syllables
regnant, potent, topmost, puncher, topper, bossy, big-gun, big-wheel, hot-dog, central, loftiest, reigning, mainstream, bullish, leading, centric, ruling, major, world-class, rampant, namest, steller, axial, triumphant, hotdog, namer
3 Syllables
centroidal, ascendent, surpassing, influential, principals, paramount, sovereign, powerful, despotic, lionlike, page-oner, governing, prevalent, hard-hitting, principal, capitals, ascendant, commanding, obtaining, outweighing, presiding, supreme, imperious, eminent, primary, leonine, outstanding, preeminent, prevailing, transcendent, capital, mainline, prepotent, hundred-proof, out-of-sight, foremost, especial, forceful
4 Syllables
presidential, high-powered, prizewinning, effective, domineering, overweighing, overbearing, preponderant, predominant, second-to-none, assertive, overriding, out-of-this-world
5 Syllables
super-eminent, gubernatorial, imperative, demonstrative, celebratory, overbalancing, predominate, supereminent
6 Syllables
authoritative