愉快

ゆかい

pleasant, happy

不愉快

ふゆかい

discomfort, unpleasantness, disagreeableness, unhappiness

愉色

ゆしょく

cheerful expression, pleased look

愉悦

ゆえつ

joy

愉楽

ゆらく

pleasure

快快的

カイカイデ カイカイデー

hurriedly, rapidly, swiftly

快

かい

pleasure, delight, enjoyment

快食快眠

かいしょくかいみん

good appetite and pleasant sleep, enjoying one's food and sleeping well

快食快便

かいしょくかいべん

good appetite and good bowel movements, enjoying one's food and having regular stools

犯

はん

perpetrators of (some) crime, (some type of) crime

快演

かいえん

superb performance, good performance

快絶

かいぜつ かいぜっ

splendid

明快

めいかい

clear, clear-cut, lucid, unequivocal, explicit

快然

かいぜん

happy, elated, good mood, pleasant feelings

快癒

かいゆ

recovery, convalescence

快報

かいほう

good news

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

快手

Kuaishou (Chinese app); Kwai