facileness

1 敏捷

wing-footed alacritous fast ready quick smart alert prompt sharp rapid keen clever swift speedy apt nimble supple brisk snappy brushing deft facile nippy spry birdlike light-footed unhesitating lightsome volant lissom gainly lightly promptly swiftly handily briskly agilely limberly deliverly facility readiness agility lightness quickness rapidity celerity deftness handiness promptitude agileness quick on the trigger

2 流畅

round smooth liquid spontaneous flowing fluent facile mellifluous voluble profluent smoothly fluently affluently fluency smoothness volubility silverness in the groove