relaxed

adjective5

1. •
   calm and comfortable, with nothing to worry about

   • He's a relaxed kind of guy, he never lets himself get upset.
2. •
   Made more lenient; less strict; lax.

   • The relaxed rules were greatly tightened after the lawsuit.
3. •
   Without physical tension; in a state of equilibrium.
4. •
   Of a muscle: soft, not tensed.
5. •
   (no longer used) Made slack or feeble; weak, soft.

   • It was a very wet morning. I woke relaxed and melancholy as in the country, and walked about an hour under cover, in the middle of the town […]. — 1790