1. (

• adeptness ,
• adroitness ,
• deftness ,
• facility ,
• quickness ,

) skillful performance or ability without difficulty; "his quick adeptness was a product of good design"; "he was famous for his facility as an archer" ;

2. (

• mental_quickness ,
• quickness ,
• quick-wittedness

) intelligence as revealed by an ability to give correct responses without delay ;

3. (

• celerity ,
• quickness ,
• rapidity ,
• rapidness ,
• speediness

) a rate that is rapid ;