1. 熟练：adept 熟练的 | adeptness 熟练 | adequacy 适当
2. 熟练, 老练：adeptism || 重用专家的作风, 用人唯贤 | adeptness || 熟练, 老练 | adequacy || 适当, 足够
1. One official concerned explained in Cantonese that she had to take time to consult with others on her adeptness for speaking English in district councils.
adeptness的近义词
noun
1. skillful performance or ability without difficulty
e.g. his quick adeptness was a product of good design
he was famous for his facility as an archer
Synonym: adroitness deftness facility quickness