快 (Kanji for pleasant)

Onyomi

KAI	Flying KITES is pleasant!, which is why the Taliban banned it.

It's pleasant to stick a big pair of open scissors in someone's heart. . . (FYI you are a Inca high priest. Duh!)

こころよ*い

pleasant, warm atmosphere
★★★★☆

快感(かいかん)

pleasure ★☆☆☆☆
快 (pleasant) + 感 (feeling) = 快感 (pleasure)

a physical sensation of pleasure - usually but not always sexual.

愉快(ゆかい) な

amusing ☆☆☆☆☆
愉 (pleasure) + 快 (pleasant) = 愉快 (amusing)

pleasant or amusing (a funny guy, hilarious comments, a fun time)

	Meaning	Hint	Radical
決	decide	WATER	水
快	pleasant	HEART	心

you decide to drink WATER,

but you have a pleasant feeling with your HEART.