01 adv. In a masterful manner; imperiously.
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1.
In a masterful manner; imperiously.“A lawless and rebellious man who held lands masterfully and in high contempt of the royal authority.” — Macaulay.
Entry
1 sense
Webster, 1913
Masterfully
· Mas·ter·ful·ly
· IPA /ˈmæstɚf(ʊ)li/