predominantly

predominant +‎ -ly

• IPA^(key): /pɹɪˈdɒmɪnəntli/

• Audio (US)

  (file)

predominantly (comparative more predominantly, superlative most predominantly)

1. In a predominant manner. Most commonly or frequently by a large margin.

   The membership is predominantly elderly, 90% are over age 60.

   • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page 3:

     Both groups are predominantly confined to areas with warm to tropical climates […]

   • 2019, Li Huang, James Lambert, “Another Arrow for the Quiver: A New Methodology for Multilingual Researchers”, in Journal of Multilingual and Multicultural Development, →DOI, page 5:

     The first phase of our pilot study found that the signage on the campus grounds was well regulated by the institution and was predominantly English.

This adverb form of the adjective predominant is preferred over predominately (the adverb form of the adjective predominate), which is considered dated or non-standard.

• primarily, principally; see also Thesaurus:mostly or Thesaurus:usually