noun
pleasure; delight; pleasant event
Refers to a pleasant or delightful occurrence. Somewhat literary and less common in everyday speech than 喜び or 楽しみ.
彼との再会はまさに快事だった。
Reuniting with him was truly a delight.
この旅行は生涯忘れられない快事となった。
This trip became an unforgettable pleasure of a lifetime.