Synonyms of controlling

1 Syllable
main, chief
2 Syllables
bossy, ruling, big-gun, big-wheel, hot-dog, reigning, namest, mainer, chiefest, hotdog, namer, bossier
3 Syllables
principal, capitals, engrossing, tenanting, capital, ascendant, mainline, commanding, ascendent, presiding, influential, managing, principals, paramount, governing, piloting, occupying, powerful, husbanding
4 Syllables
possessive, predominant, second-to-none, presidential, high-powered, managerial, normalizing, regulating, supervising, standardizing
5 Syllables
dominative, supereminent, super-eminent, gubernatorial, supervisory, policy-making, executive, policymaking
6 Syllables
administrative, organizational