• 快勝かいしょう

  sweeping victory, easy victory

• 快晴かいせい

  clear weather, cloudless weather, good weather

• 快適かいてき

  pleasant, agreeable, comfortable

• 快活かいかつ

  cheerful, lively, lighthearted

• 快感かいかん

  pleasant feeling, pleasant sensation, pleasure

• 快調かいちょう

  good (condition), going well, fine, smooth

• 快いこころよい

  pleasant, agreeable, comfortable, refreshing

• 快速かいそく

  high speed, rapidity

• 快楽かいらく

  pleasure

• 快挙かいきょ

  brilliant achievement, spectacular feat, splendid accomplishment, remarkable deed

• 爽快そうかい

  refreshing, exhilarating, invigorating, bracing

• 豪快ごうかい

  hearty, tremendous, magnificent, glorious, splendid, heroic, stirring

• 全快ぜんかい

  complete recovery of health

• 不快ふかい

  displeasure, discomfort, unpleasantness

• 軽快けいかい

  light (of movements), nimble, sprightly, springy

• 愉快ゆかい

  pleasant, delightful, enjoyable, joyful, cheerful, amusing, happy

• 明快めいかい

  clear, clear-cut, lucid, unequivocal, explicit

• 不愉快ふゆかい

  unpleasant, disagreeable, displeasing, uncomfortable, unhappy

• 快かい

  pleasure, delight, enjoyment

• 快味かいみ

  pleasure

• 快気かいき

  recovery

• 快打かいだ

  clean hit

• 快弁かいべん

  eloquence

• 快報かいほう

  good news

• 快絶かいぜつ

  splendid

• 快投かいとう

  good pitch

• 快刀かいとう

  sharp sword

• 快方かいほう

  convalescence

• 快諾かいだく

  ready consent

• 快哉かいさい

  joy, exultation

• 快事かいじ

  pleasure, delight

• 快漢かいかん

  pleasant fellow

• 快手クアイショウ

  Kuaishou (Chinese app), Kwai

• 快癒かいゆ

  recovery, convalescence

• 快急かいきゅう

  rapid express (train)

• 快演かいえん

  superb performance, good performance

• 快走かいそう

  fast moving, fast running, fast sailing

• 快心かいしん

  good feeling, comfortable feeling

• 快便かいべん

  comfortable bowel movement

• 快作かいさく

  splendid work, masterpiece

• 快眠かいみん

  pleasant sleep, good sleep, sleeping well

• 快食かいしょく

  eating well, (having a) good appetite

• 快特かいとく

  rapid express (train service), rapid limited express

• 快腸かいちょう

  well-functioning bowels, good bowel movements

• 快足かいそく

  being nimble-footed, being quick on one's feet, fast running legs

• 快音かいおん

  pleasant sound, pleasing sound, crack (of a baseball bat), (pleasant) roar (of an engine)

• 快然かいぜん

  happy, elated, good mood, pleasant feelings

• 快くこころよく

  comfortably, pleasantly, cheerfully

• 痛快つうかい

  exhilarating, thrilling, intensely pleasurable

• 壮快そうかい

  emotionally uplifting, stirring