primarily, largely, predominantly, basically, principally, substantially, in the main, chiefly, overwhelmingly, dominantly, preferentially.
generally (adverb)
Synonyms:
usually.
More mostly synonyms
most often, most frequently, more often, most commonly, most of, majority, in the majority, in general, on the whole, above all, above all things, increasingly, more, in large part, partly, sometimes, commonly, frequently,