superiorly (part of speech: adverb)
supremely (part of speech: adverb)
- I think so, chiefly by remembering a good girl. - "Carnac's Folly, Volume 2.", Gilbert Parker.
- What the merchant wants chiefly with the traveling man is to do business with him. - "Tales of the Road", Charles N. Crewdson.
- " I don't know," Banks said desperately, and then added, " It depends chiefly on Her." - "The Jervaise Comedy", J. D. Beresford.