having ascendancy, power, authority, or influence over others; preeminent.

preponderant; prominent

a predominant trait; the predominant color of a painting.

adjective

inconsequential , minor , trivial , unimportant

adjective

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 , prepotent , regnant , current , rife , widespread , important , overruling , ruling