Source : Webster's Revised Unabridged Dictionary (1913)

Predominant \Pre*dom"i*nant\, a. [Cf. F. pr['e]dominant. See
   {Predominante}.]
   Having the ascendency over others; superior in strength,
   influence, or authority; prevailing; as, a predominant color;
   predominant excellence.

         Those help . . . were predominant in the king's mind.
                                                  --Bacon.

         Foul subordination is predominant.       --Shak.

   Syn: Prevalent; superior; prevailing; ascendant; ruling;
        reigning; controlling; overruling.

Source : WordNet®

predominant
     adj 1: most frequent or common; "prevailing winds" [syn: {prevailing}]
     2: having superior power and influence; "the predominant mood
        among policy-makers is optimism" [syn: {overriding}, {paramount},
         {predominate}, {preponderant}, {preponderating}]