pre ‧ pon ‧ de ‧ rant /prɪˈpɒndər ə nt $ -ˈpɑːn-/ BrE AmE adjective formal
[ Date: 1600-1700 ; Language: Latin ; Origin: present participle of praeponderare 'to weigh more than' ]
main, most important, or most frequent
—preponderantly adverb :
the preponderantly female staff at the factory