adjective
ruling; most important
Synonyms: absolute, all-powerful, almighty, arbitrary, ascendant, authoritative, capital, chief, controlling, directing, dominant, dominating, effective, efficacious, governing, holding the reins, imperious, influential, leading, main, mighty, official, omnipotent, overbearing, overpowering, paramount, potent, predominate, preponderant, prevailing, prevalent, primary, prime, principal, prominent, reigning, sovereign, superior, superlative, supervisory, supreme, surpassing, transcendent, weighty
Antonyms: inconsequential, minor, trivial, unimportant