relaxed person
Antonyms
Examples
The squeeze machine is not going to cure anybody, but it may help them relax; and a relaxed person will usually have better behavior.
I am quite a relaxed person out of the car, but in the car I am aggressive, I never give up, I fight to the end and I try 100% all the time.
Aside from being a fighter, I am a relaxed person. It is a lifestyle thing for me. I don't stress too much.