| Preponderant (a.) Dominant; most prevalent; outweighing; overbalancing; -- used literally and figuratively; as, a preponderant weight; of preponderant importance. Thesaurus Entries arch, ascendant, at the head, banner, boss, capital, cardinal, central, champion, chief, commanding, controlling, crowning, dominant, first, focal, foremost, general, governing, great, head, headmost, hegemonic, hegemonistic, in ascendancy, in charge, in chief, in the ascendant, leading, magisterial, main, master, on the throne, overbearing, overruling, paramount, predominant, predominate, preeminent, prepollent, preponderate, prepotent, prevailing, prevalent, primal, primary, prime, principal, ranking, regnant, regulating, regulative, regulatory, reigning, ruling, sovereign, star, stellar, supereminent, supreme, swaying, topflight |