A relaxed mood.
Not warm and friendly; distant:
(Intransitive) To become calm.
To relax is defined as to become calm, to loosen, or to calm down.
Find another word for chill-out. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for chill-out, like: mellow, calm down, chill, cool-it, cool-off, loosen-up, settle-down, simmer down, take a chill pill, calm and rnb.