In a predominant manner. Most commonly or frequently by a large margin.(adverb)
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Use "predominantly" in a sentence
"But rural development has long been a staple of counterinsurgency efforts in predominantly agricultural economies facing guerrilla wars."
"As Mike K has said, these assets are in predominantly rural areas – low volume, low revenue, high cost, and not exactly prime properties for a new entrant."
"Additionally, there were many more ‘overvotes’ than usual, especially in predominantly African-American precincts in Duval county (Jacksonville), where some 27,000 ballots showed two or more choices for President [citation needed]."