i-adjective
chilled-out; relaxed; easygoing
Youth slang derived from English 'chill'. Describes a calm, unhurried atmosphere or a person's laid-back attitude.
このカフェ、すごくチルい雰囲気だね。
This café has a really chilled-out vibe, doesn't it?
He's always so easygoing; I feel at ease around him.