tranquil

Free from commotion or disturbance.

Free from anxiety, tension, or restlessness; composed: synonym: calm.

Steady; even.

Quiet; calm; undisturbed; not agitated; serene.

Synonyms Placid, Serene, etc. See calm.

Quiet; calm; undisturbed; peaceful; not agitated.

Free from emotional or mental disturbance.

Calm; without motion or sound.

(of a body of water) free from disturbance by heavy waves

not agitated; without losing self-possession