preeminent (adj.)

• absolute
• apical
• arch
• ascendant
• authoritarian
• authoritative
• authorized
• autocratic
• banner
• capital
• cardinal
• central
• champion
• chief
• commanding
• competent
• consequential
• considerable
• consummate
• controlling
• crowning
• dominant
• eminent
• empowered
• first
• focal
• foremost
• governing
• great
• head
• imperative
• important
• incomparable
• influential
• leading
• magisterial
• main
• major
• master
• maximal
• maximum
• meridian
• meridional
• mighty
• momentous
• official
• outstanding
• overriding
• paramount
• potent
• powerful
• predominant
• premier
• preponderant
• prestigious
• prevailing
• primal
• primary
• prime
• principal
• prominent
• puissant
• ranking
• ruling
• senior
• sovereign
• star
• stellar
• substantial
• superior
• supreme
• surpassing
• top
• topmost
• totalitarian
• towering
• transcendent
• ultimate
• unmatchable
• unsurpassable
• upmost
• uppermost
• vertical
• weighty
• zenithal