1. (a.) Highest in authority; holding the highest place in authority, government, or power.

2. (a.) Highest; greatest; most excellent or most extreme; utmost; greatest possible (sometimes in a bad sense); as, supreme love; supreme glory; supreme magnanimity; supreme folly.

3. (a.) Situated at the highest part or point.

absolute acmatic all-absorbing all-knowing all-powerful all-seeing all-wise almighty apical ascendant at the head authoritarian authoritative authorized autocratic best boss boundless brilliant capital cardinal champion changeless chief choice clothed with authority commanding competent consequential considerable consummate controlling creating creative crowning dominant duly constituted elect elite eminent empowered eternal eternally the same everlasting ex officio excellent extreme final first first-class first-rate for the best foremost general glorious good governing great greatest hallowed handpicked head headmost hegemonic hegemonistic highest holy immortal immutable imperative important in ascendancy in charge in chief in the ascendant incomparable infinite influential inimitable just last leading limitless loftiest loving luminous main majestic making master masterful masterly matchless maximal maximum merciful meridian meridional mighty momentous monocratic most numinous official omnipotent omnipresent omniscient one optimal optimum outstanding overmost overriding overruling paramount peerless perfect permanent perpetual picked plenipotentiary potent powerful predominant predominate preeminent premier prepollent preponderant preponderate prepotent prestigious prevalent primary prime principal prize prominent puissant quintessential radiant ranking regnant regulating regulative regulatory reigning ruling sacred select senior shaping sovereign sublime substantial summital superb superior superlative surpassing timeless tip-top top top-notch topmost totalitarian towering transcendent ubiquitous ultimate unbounded unchanging undefined unequaled unexcelled unlimited unmatchable unmatched unparalleled unrivaled unsurpassable unsurpassed upmost uppermost utmost uttermost vertical very best weighty zenithal