mas·ter·ly
ˈma-stər-lē
1
: suitable to or resembling that of a master
especially
: indicating thorough knowledge or superior skill and power
a masterly performance
2
: having the power and skill of a master
… she's masterly at description …—
Caroline Knapp
masterliness
noun
masterly
adverb
mas·ter·li·ness
ˈmastə(r)lēnə̇s,
-aas-,
-ais-,
-ȧs-,
-lin-
plural -es
: the quality or state of being masterly
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Merriam-Webster unabridged



