形容詞 masterly:

1. having or revealing supreme mastery or skill
   同義詞：consummate, masterful, virtuoso

1. A person with masterly skill or technique in the arts.
   藝術名家在藝術上造詣很深的人
2. A musician with masterly ability, technique, or personal style.
   演奏能手功力深厚、技巧嫻熟或有個人風格的音樂師

mas.ter.ly

adj.（形容詞）
Having or showing the knowledge or skill of a master.See Usage Note at masterful
熟練地擁有的或顯示出知識或技能的參見 masterful
adv.（副詞）
With the skill of a master.
熟練地：具有精通者的技術地

【引伸】
mas.terliness
n.（名詞）