Synonyms and related words :
arch, banner, capital, capping, cardinal, central, champion, chief, closing, completing, completive, completory, concluding, conclusive, consummating, consummative, consummatory, culminating, culminative, dominant, ending, final, finalizing, finishing, first, focal, foremost, fulfilling, great, heading, headmost, hegemonic, last, leading, magisterial, main, master, outtopping, overruling, overtopping, paramount, perfecting, perfective, predominant, preeminent, preponderant, prevailing, primal, primary, prime, principal, ranking, ruling, sovereign, star, stellar, supereminent, terminal, terminating, terminative, topflight, topping, ultimate