khuài快

pleased

pleased; happy; forthright; plainspoken; rapid; quick; speedy; fast; sharp; sharp-edged

adverb

English Wiktionary, “快” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%BF%AB · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)